sphinx 安装使用

一.linux(centos)下安装源码包

1.下载 

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1	wget http://sphinxsearch.com/files/sphinx-2.3.1-beta.tar.gz

2.安装  

切换目录到  /usr/local/src 目录下 执行上面的命令

1）解压--->切换进入解压后的包--->

2）编译前准备

     安装工具包命令：yum -y install make gcc g++ gcc-c++ libtool autoconf automake imake mysql-devel libxml2-devel expat-devel  注：（yum -y  就是不用确定进行安装，不能          少 装）安装完成不报错就可以进行编译

3）安装命令：./configure   --prefix=/usr/local/sphinx   安装完成后会告诉你可以进行编译，欢迎使用sphinx

4）make   生成编译文件不会进行编译

5） make install 进行编译  //警告忽略

　也可以一起执行：make && make install //如果make报错后面make install不会执行 

 

3.测试

       cd /usr/local/sphinx/etc

　　先复制一份配置项 cp sphinx-min.conf.dist sphinx.conf

　　进行配置：

　　　　　　vi sphinx.conf

     例如：

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# # Minimal Sphinx configuration sample (clean, simple, functional) #   source src1 {     type            = mysql     sql_sock        = /tmp/mysql.sock     sql_host        = localhost  #服务器     sql_user        = root     sql_pass        = 123456     sql_db          = test     sql_port        = 3306  # optional, default is 3306     # 设置mysql检索编码，特别要注意这点，很多人中文检索不到数据库的编码是GBK或其他非UTF8     sql_query_pre = SET NAMES UTF8     sql_query       = select * from documents # 获取数据的sql       #sql_attr_uint      = group_id  #无符号整数属性     #sql_attr_timestamp = date_added # UNIX时间戳属性     sql_field_string        = content #打印输出的字段<br>　　　　 sql_query_info = SELECT * FROM documents WHERE id=$id  #用于命令界面端的测试（cli） }     index test1  #索引 {     charset_type= zh_cn.utf-8   # 编码     ngram_len= 1   # 简单分词，只有0和1，需要搜索中文必须置1     ngram_chars= U+3000..U+2FA1F   #需要分词的字符，搜索中文时必须     source          = src1 #声明索引源     path            = /mnt/data/test1  #索引文件存放路径及索引的文件名 }       indexer {     mem_limit       = 128M }     searchd {     listen          = 9312     listen          = 9306:mysql41     log         = /usr/local/sphinx/var/log/searchd.log     query_log       = /usr/local/sphinx/var/log/query.log     read_timeout        = 5     max_children        = 30     pid_file        = /usr/local/sphinx/var/log/searchd.pid     seamless_rotate     = 1     preopen_indexes     = 1     unlink_old      = 1     workers         = threads # for RT to work     binlog_path     = /usr/local/sphinx/var/data }

　　

　　　　

cd /usr/local/sphinx/bin

执行  ./indexer  --all (生成索引)

        ./search 要查询的值 (不成功用API测试)

能查询的到sphinx就安装成功了。。。。。。。。。。。

 

 

4.php操作sphinx

<?php
header ('Content-Type: text/html;charset="UTF-8"');
if(empty($_GET)){
    echo "<form action='' method='get'>
         请输入关键词:<input type='text' name='con'><input type='submit'></form> ";
}else{
    require('sphinxapi.php');
    $s = new SphinxClient;
    $s->setServer("127.0.0.1", 9312);

    $name=$_GET['con'];

    $s->setMaxQueryTime(30);
    
    // $res1 = $s->query('aaaa','*');
    
    //设置搜索模式
    $s->SetMatchMode(SPH_MATCH_EXTENDED2);
    //设置搜索字段
    if (trim($name) != '') {
            $res1 = $s->Query('@content ' . $name, '*');
    } else {
            $res1 = $s->Query($name, '*');
    }
    
    $err = $s->GetLastError();
   //var_dump(array_keys($res['matches']));
   // echo "<br>"."通过获取的ID来读取数据库中的值即可。"."<br>";
    
    echo '<pre>';
    
    $products=!empty($res1['matches'])?$res1['matches']:"";


    print_r($products);
    
    if(!empty($err)){
        print_r($err);
    }

    $s->close();
}

 

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1	sphinxapi.php

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<?php   // // $Id: sphinxapi.php 4885 2015-01-20 07:02:07Z deogar $ //   // // Copyright (c) 2001-2015, Andrew Aksyonoff // Copyright (c) 2008-2015, Sphinx Technologies Inc // All rights reserved // // This program is free software; you can redistribute it and/or modify // it under the terms of the GNU General Public License. You should have // received a copy of the GPL license along with this program; if you // did not, you can find it at http://www.gnu.org/ //   // !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! //                          WARNING // We strongly recommend you to use SphinxQL instead of the API // !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!   ///////////////////////////////////////////////////////////////////////////// // PHP version of Sphinx searchd client (PHP API) /////////////////////////////////////////////////////////////////////////////   /// known searchd commands define ( "SEARCHD_COMMAND_SEARCH",      0 ); define ( "SEARCHD_COMMAND_EXCERPT",     1 ); define ( "SEARCHD_COMMAND_UPDATE",      2 ); define ( "SEARCHD_COMMAND_KEYWORDS",    3 ); define ( "SEARCHD_COMMAND_PERSIST",     4 ); define ( "SEARCHD_COMMAND_STATUS",      5 ); define ( "SEARCHD_COMMAND_FLUSHATTRS",  7 );   /// current client-side command implementation versions define ( "VER_COMMAND_SEARCH",      0x11E ); define ( "VER_COMMAND_EXCERPT",     0x104 ); define ( "VER_COMMAND_UPDATE",      0x103 ); define ( "VER_COMMAND_KEYWORDS",    0x100 ); define ( "VER_COMMAND_STATUS",      0x101 ); define ( "VER_COMMAND_QUERY",       0x100 ); define ( "VER_COMMAND_FLUSHATTRS",  0x100 );   /// known searchd status codes define ( "SEARCHD_OK",              0 ); define ( "SEARCHD_ERROR",           1 ); define ( "SEARCHD_RETRY",           2 ); define ( "SEARCHD_WARNING",         3 );   /// known match modes define ( "SPH_MATCH_ALL",           0 ); define ( "SPH_MATCH_ANY",           1 ); define ( "SPH_MATCH_PHRASE",        2 ); define ( "SPH_MATCH_BOOLEAN",       3 ); define ( "SPH_MATCH_EXTENDED",      4 ); define ( "SPH_MATCH_FULLSCAN",      5 ); define ( "SPH_MATCH_EXTENDED2",     6 );    // extended engine V2 (TEMPORARY, WILL BE REMOVED)   /// known ranking modes (ext2 only) define ( "SPH_RANK_PROXIMITY_BM25", 0 );    ///< default mode, phrase proximity major factor and BM25 minor one define ( "SPH_RANK_BM25",           1 );    ///< statistical mode, BM25 ranking only (faster but worse quality) define ( "SPH_RANK_NONE",           2 );    ///< no ranking, all matches get a weight of 1 define ( "SPH_RANK_WORDCOUNT",      3 );    ///< simple word-count weighting, rank is a weighted sum of per-field keyword occurence counts define ( "SPH_RANK_PROXIMITY",      4 ); define ( "SPH_RANK_MATCHANY",       5 ); define ( "SPH_RANK_FIELDMASK",      6 ); define ( "SPH_RANK_SPH04",          7 ); define ( "SPH_RANK_EXPR",           8 ); define ( "SPH_RANK_TOTAL",          9 );   /// known sort modes define ( "SPH_SORT_RELEVANCE",      0 ); define ( "SPH_SORT_ATTR_DESC",      1 ); define ( "SPH_SORT_ATTR_ASC",       2 ); define ( "SPH_SORT_TIME_SEGMENTS",  3 ); define ( "SPH_SORT_EXTENDED",       4 ); define ( "SPH_SORT_EXPR",           5 );   /// known filter types define ( "SPH_FILTER_VALUES",       0 ); define ( "SPH_FILTER_RANGE",        1 ); define ( "SPH_FILTER_FLOATRANGE",   2 ); define ( "SPH_FILTER_STRING",   3 );   /// known attribute types define ( "SPH_ATTR_INTEGER",        1 ); define ( "SPH_ATTR_TIMESTAMP",      2 ); define ( "SPH_ATTR_ORDINAL",        3 ); define ( "SPH_ATTR_BOOL",           4 ); define ( "SPH_ATTR_FLOAT",          5 ); define ( "SPH_ATTR_BIGINT",         6 ); define ( "SPH_ATTR_STRING",         7 ); define ( "SPH_ATTR_FACTORS",            1001 ); define ( "SPH_ATTR_MULTI",          0x40000001 ); define ( "SPH_ATTR_MULTI64",            0x40000002 );   /// known grouping functions define ( "SPH_GROUPBY_DAY",         0 ); define ( "SPH_GROUPBY_WEEK",        1 ); define ( "SPH_GROUPBY_MONTH",       2 ); define ( "SPH_GROUPBY_YEAR",        3 ); define ( "SPH_GROUPBY_ATTR",        4 ); define ( "SPH_GROUPBY_ATTRPAIR",    5 );   // important properties of PHP's integers: //  - always signed (one bit short of PHP_INT_SIZE) //  - conversion from string to int is saturated //  - float is double //  - div converts arguments to floats //  - mod converts arguments to ints   // the packing code below works as follows: //  - when we got an int, just pack it //    if performance is a problem, this is the branch users should aim for // //  - otherwise, we got a number in string form //    this might be due to different reasons, but we assume that this is //    because it didn't fit into PHP int // //  - factor the string into high and low ints for packing //    - if we have bcmath, then it is used //    - if we don't, we have to do it manually (this is the fun part) // //    - x64 branch does factoring using ints //    - x32 (ab)uses floats, since we can't fit unsigned 32-bit number into an int // // unpacking routines are pretty much the same. //  - return ints if we can //  - otherwise format number into a string   /// pack 64-bit signed function sphPackI64 ( $v ) {     assert ( is_numeric($v) );           // x64     if ( PHP_INT_SIZE>=8 )     {         $v = (int)$v;         return pack ( "NN", $v>>32, $v&0xFFFFFFFF );     }       // x32, int     if ( is_int($v) )         return pack ( "NN", $v < 0 ? -1 : 0, $v );       // x32, bcmath      if ( function_exists("bcmul") )     {         if ( bccomp ( $v, 0 ) == -1 )             $v = bcadd ( "18446744073709551616", $v );         $h = bcdiv ( $v, "4294967296", 0 );         $l = bcmod ( $v, "4294967296" );         return pack ( "NN", (float)$h, (float)$l ); // conversion to float is intentional; int would lose 31st bit     }       // x32, no-bcmath     $p = max(0, strlen($v) - 13);     $lo = abs((float)substr($v, $p));     $hi = abs((float)substr($v, 0, $p));       $m = $lo + $hi*1316134912.0; // (10 ^ 13) % (1 << 32) = 1316134912     $q = floor($m/4294967296.0);     $l = $m - ($q*4294967296.0);     $h = $hi*2328.0 + $q; // (10 ^ 13) / (1 << 32) = 2328       if ( $v<0 )     {         if ( $l==0 )             $h = 4294967296.0 - $h;         else         {             $h = 4294967295.0 - $h;             $l = 4294967296.0 - $l;         }     }     return pack ( "NN", $h, $l ); }   /// pack 64-bit unsigned function sphPackU64 ( $v ) {     assert ( is_numeric($v) );           // x64     if ( PHP_INT_SIZE>=8 )     {         assert ( $v>=0 );                   // x64, int         if ( is_int($v) )             return pack ( "NN", $v>>32, $v&0xFFFFFFFF );                                     // x64, bcmath         if ( function_exists("bcmul") )         {             $h = bcdiv ( $v, 4294967296, 0 );             $l = bcmod ( $v, 4294967296 );             return pack ( "NN", $h, $l );         }                   // x64, no-bcmath         $p = max ( 0, strlen($v) - 13 );         $lo = (int)substr ( $v, $p );         $hi = (int)substr ( $v, 0, $p );               $m = $lo + $hi*1316134912;         $l = $m % 4294967296;         $h = $hi*2328 + (int)($m/4294967296);           return pack ( "NN", $h, $l );     }       // x32, int     if ( is_int($v) )         return pack ( "NN", 0, $v );           // x32, bcmath     if ( function_exists("bcmul") )     {         $h = bcdiv ( $v, "4294967296", 0 );         $l = bcmod ( $v, "4294967296" );         return pack ( "NN", (float)$h, (float)$l ); // conversion to float is intentional; int would lose 31st bit     }       // x32, no-bcmath     $p = max(0, strlen($v) - 13);     $lo = (float)substr($v, $p);     $hi = (float)substr($v, 0, $p);           $m = $lo + $hi*1316134912.0;     $q = floor($m / 4294967296.0);     $l = $m - ($q * 4294967296.0);     $h = $hi*2328.0 + $q;       return pack ( "NN", $h, $l ); }   // unpack 64-bit unsigned function sphUnpackU64 ( $v ) {     list ( $hi, $lo ) = array_values ( unpack ( "N*N*", $v ) );       if ( PHP_INT_SIZE>=8 )     {         if ( $hi<0 ) $hi += (1<<32); // because php 5.2.2 to 5.2.5 is totally fucked up again         if ( $lo<0 ) $lo += (1<<32);           // x64, int         if ( $hi<=2147483647 )             return ($hi<<32) + $lo;           // x64, bcmath         if ( function_exists("bcmul") )             return bcadd ( $lo, bcmul ( $hi, "4294967296" ) );           // x64, no-bcmath         $C = 100000;         $h = ((int)($hi / $C) << 32) + (int)($lo / $C);         $l = (($hi % $C) << 32) + ($lo % $C);         if ( $l>$C )         {             $h += (int)($l / $C);             $l  = $l % $C;         }           if ( $h==0 )             return $l;         return sprintf ( "%d%05d", $h, $l );     }       // x32, int     if ( $hi==0 )     {         if ( $lo>0 )             return $lo;         return sprintf ( "%u", $lo );     }       $hi = sprintf ( "%u", $hi );     $lo = sprintf ( "%u", $lo );       // x32, bcmath     if ( function_exists("bcmul") )         return bcadd ( $lo, bcmul ( $hi, "4294967296" ) );           // x32, no-bcmath     $hi = (float)$hi;     $lo = (float)$lo;           $q = floor($hi/10000000.0);     $r = $hi - $q*10000000.0;     $m = $lo + $r*4967296.0;     $mq = floor($m/10000000.0);     $l = $m - $mq*10000000.0;     $h = $q*4294967296.0 + $r*429.0 + $mq;       $h = sprintf ( "%.0f", $h );     $l = sprintf ( "%07.0f", $l );     if ( $h=="0" )         return sprintf( "%.0f", (float)$l );     return $h . $l; }   // unpack 64-bit signed function sphUnpackI64 ( $v ) {     list ( $hi, $lo ) = array_values ( unpack ( "N*N*", $v ) );       // x64     if ( PHP_INT_SIZE>=8 )     {         if ( $hi<0 ) $hi += (1<<32); // because php 5.2.2 to 5.2.5 is totally fucked up again         if ( $lo<0 ) $lo += (1<<32);           return ($hi<<32) + $lo;     }       // x32, int     if ( $hi==0 )     {         if ( $lo>0 )             return $lo;         return sprintf ( "%u", $lo );     }     // x32, int     elseif ( $hi==-1 )     {         if ( $lo<0 )             return $lo;         return sprintf ( "%.0f", $lo - 4294967296.0 );     }           $neg = "";     $c = 0;     if ( $hi<0 )     {         $hi = ~$hi;         $lo = ~$lo;         $c = 1;         $neg = "-";     }         $hi = sprintf ( "%u", $hi );     $lo = sprintf ( "%u", $lo );       // x32, bcmath     if ( function_exists("bcmul") )         return $neg . bcadd ( bcadd ( $lo, bcmul ( $hi, "4294967296" ) ), $c );       // x32, no-bcmath     $hi = (float)$hi;     $lo = (float)$lo;           $q = floor($hi/10000000.0);     $r = $hi - $q*10000000.0;     $m = $lo + $r*4967296.0;     $mq = floor($m/10000000.0);     $l = $m - $mq*10000000.0 + $c;     $h = $q*4294967296.0 + $r*429.0 + $mq;     if ( $l==10000000 )     {         $l = 0;         $h += 1;     }       $h = sprintf ( "%.0f", $h );     $l = sprintf ( "%07.0f", $l );     if ( $h=="0" )         return $neg . sprintf( "%.0f", (float)$l );     return $neg . $h . $l; }     function sphFixUint ( $value ) {     if ( PHP_INT_SIZE>=8 )     {         // x64 route, workaround broken unpack() in 5.2.2+         if ( $value<0 ) $value += (1<<32);         return $value;     }     else     {         // x32 route, workaround php signed/unsigned braindamage         return sprintf ( "%u", $value );     } }   function sphSetBit ( $flag, $bit, $on ) {     if ( $on )     {         $flag += ( 1<<$bit );     } else     {         $reset = 255 ^ ( 1<<$bit );         $flag = $flag & $reset;     }     return $flag; }     /// sphinx searchd client class class SphinxClient {     var $_host;         ///< searchd host (default is "localhost")     var $_port;         ///< searchd port (default is 9312)     var $_offset;       ///< how many records to seek from result-set start (default is 0)     var $_limit;        ///< how many records to return from result-set starting at offset (default is 20)     var $_mode;         ///< query matching mode (default is SPH_MATCH_EXTENDED2)     var $_weights;      ///< per-field weights (default is 1 for all fields)     var $_sort;         ///< match sorting mode (default is SPH_SORT_RELEVANCE)     var $_sortby;       ///< attribute to sort by (defualt is "")     var $_min_id;       ///< min ID to match (default is 0, which means no limit)     var $_max_id;       ///< max ID to match (default is 0, which means no limit)     var $_filters;      ///< search filters     var $_groupby;      ///< group-by attribute name     var $_groupfunc;    ///< group-by function (to pre-process group-by attribute value with)     var $_groupsort;    ///< group-by sorting clause (to sort groups in result set with)     var $_groupdistinct;///< group-by count-distinct attribute     var $_maxmatches;   ///< max matches to retrieve     var $_cutoff;       ///< cutoff to stop searching at (default is 0)     var $_retrycount;   ///< distributed retries count     var $_retrydelay;   ///< distributed retries delay     var $_anchor;       ///< geographical anchor point     var $_indexweights; ///< per-index weights     var $_ranker;       ///< ranking mode (default is SPH_RANK_PROXIMITY_BM25)     var $_rankexpr;     ///< ranking mode expression (for SPH_RANK_EXPR)     var $_maxquerytime; ///< max query time, milliseconds (default is 0, do not limit)     var $_fieldweights; ///< per-field-name weights     var $_overrides;    ///< per-query attribute values overrides     var $_select;       ///< select-list (attributes or expressions, with optional aliases)     var $_query_flags; ///< per-query various flags     var $_predictedtime; ///< per-query max_predicted_time     var $_outerorderby; ///< outer match sort by     var $_outeroffset; ///< outer offset     var $_outerlimit; ///< outer limit     var $_hasouter;       var $_error;        ///< last error message     var $_warning;      ///< last warning message     var $_connerror;        ///< connection error vs remote error flag       var $_reqs;         ///< requests array for multi-query     var $_mbenc;        ///< stored mbstring encoding     var $_arrayresult;  ///< whether $result["matches"] should be a hash or an array     var $_timeout;      ///< connect timeout       /////////////////////////////////////////////////////////////////////////////     // common stuff     /////////////////////////////////////////////////////////////////////////////       /// create a new client object and fill defaults     function SphinxClient ()     {         // per-client-object settings         $this->_host     = "localhost";         $this->_port     = 9312;         $this->_path     = false;         $this->_socket       = false;           // per-query settings         $this->_offset       = 0;         $this->_limit        = 20;         $this->_mode     = SPH_MATCH_EXTENDED2;         $this->_weights      = array ();         $this->_sort     = SPH_SORT_RELEVANCE;         $this->_sortby       = "";         $this->_min_id       = 0;         $this->_max_id       = 0;         $this->_filters      = array ();         $this->_groupby      = "";         $this->_groupfunc    = SPH_GROUPBY_DAY;         $this->_groupsort    = "@group desc";         $this->_groupdistinct= "";         $this->_maxmatches   = 1000;         $this->_cutoff       = 0;         $this->_retrycount   = 0;         $this->_retrydelay   = 0;         $this->_anchor       = array ();         $this->_indexweights= array ();         $this->_ranker       = SPH_RANK_PROXIMITY_BM25;         $this->_rankexpr = "";         $this->_maxquerytime= 0;         $this->_fieldweights= array();         $this->_overrides    = array();         $this->_select       = "*";         $this->_query_flags = sphSetBit ( 0, 6, true ); // default idf=tfidf_normalized         $this->_predictedtime = 0;         $this->_outerorderby = "";         $this->_outeroffset = 0;         $this->_outerlimit = 0;         $this->_hasouter = false;           $this->_error        = ""; // per-reply fields (for single-query case)         $this->_warning      = "";         $this->_connerror    = false;           $this->_reqs     = array (); // requests storage (for multi-query case)         $this->_mbenc        = "";         $this->_arrayresult  = false;         $this->_timeout      = 0;     }       function __destruct()     {         if ( $this->_socket !== false )             fclose ( $this->_socket );     }       /// get last error message (string)     function GetLastError ()     {         return $this->_error;     }       /// get last warning message (string)     function GetLastWarning ()     {         return $this->_warning;     }       /// get last error flag (to tell network connection errors from searchd errors or broken responses)     function IsConnectError()     {         return $this->_connerror;     }       /// set searchd host name (string) and port (integer)     function SetServer ( $host, $port = 0 )     {         assert ( is_string($host) );         if ( $host[0] == '/')         {             $this->_path = 'unix://' . $host;             return;         }         if ( substr ( $host, 0, 7 )=="unix://" )         {             $this->_path = $host;             return;         }                           $this->_host = $host;         $port = intval($port);         assert ( 0<=$port && $port<65536 );         $this->_port = ( $port==0 ) ? 9312 : $port;         $this->_path = '';     }       /// set server connection timeout (0 to remove)     function SetConnectTimeout ( $timeout )     {         assert ( is_numeric($timeout) );         $this->_timeout = $timeout;     }         function _Send ( $handle, $data, $length )     {         if ( feof($handle) || fwrite ( $handle, $data, $length ) !== $length )         {             $this->_error = 'connection unexpectedly closed (timed out?)';             $this->_connerror = true;             return false;         }         return true;     }       /////////////////////////////////////////////////////////////////////////////       /// enter mbstring workaround mode     function _MBPush ()     {         $this->_mbenc = "";         if ( ini_get ( "mbstring.func_overload" ) & 2 )         {             $this->_mbenc = mb_internal_encoding();             mb_internal_encoding ( "latin1" );         }     }       /// leave mbstring workaround mode     function _MBPop ()     {         if ( $this->_mbenc )             mb_internal_encoding ( $this->_mbenc );     }       /// connect to searchd server     function _Connect ()     {         if ( $this->_socket!==false )         {             // we are in persistent connection mode, so we have a socket             // however, need to check whether it's still alive             if ( !@feof ( $this->_socket ) )                 return $this->_socket;               // force reopen             $this->_socket = false;         }           $errno = 0;         $errstr = "";         $this->_connerror = false;           if ( $this->_path )         {             $host = $this->_path;             $port = 0;         }         else         {             $host = $this->_host;             $port = $this->_port;         }           if ( $this->_timeout<=0 )             $fp = @fsockopen ( $host, $port, $errno, $errstr );         else             $fp = @fsockopen ( $host, $port, $errno, $errstr, $this->_timeout );                   if ( !$fp )         {             if ( $this->_path )                 $location = $this->_path;             else                 $location = "{$this->_host}:{$this->_port}";                           $errstr = trim ( $errstr );             $this->_error = "connection to $location failed (errno=$errno, msg=$errstr)";             $this->_connerror = true;             return false;         }           // send my version         // this is a subtle part. we must do it before (!) reading back from searchd.         // because otherwise under some conditions (reported on FreeBSD for instance)         // TCP stack could throttle write-write-read pattern because of Nagle.         if ( !$this->_Send ( $fp, pack ( "N", 1 ), 4 ) )         {             fclose ( $fp );             $this->_error = "failed to send client protocol version";             return false;         }           // check version         list(,$v) = unpack ( "N*", fread ( $fp, 4 ) );         $v = (int)$v;         if ( $v<1 )         {             fclose ( $fp );             $this->_error = "expected searchd protocol version 1+, got version '$v'";             return false;         }           return $fp;     }       /// get and check response packet from searchd server     function _GetResponse ( $fp, $client_ver )     {         $response = "";         $len = 0;           $header = fread ( $fp, 8 );         if ( strlen($header)==8 )         {             list ( $status, $ver, $len ) = array_values ( unpack ( "n2a/Nb", $header ) );             $left = $len;             while ( $left>0 && !feof($fp) )             {                 $chunk = fread ( $fp, min ( 8192, $left ) );                 if ( $chunk )                 {                     $response .= $chunk;                     $left -= strlen($chunk);                 }             }         }         if ( $this->_socket === false )             fclose ( $fp );           // check response         $read = strlen ( $response );         if ( !$response || $read!=$len )         {             $this->_error = $len                 ? "failed to read searchd response (status=$status, ver=$ver, len=$len, read=$read)"                 : "received zero-sized searchd response";             return false;         }           // check status         if ( $status==SEARCHD_WARNING )         {             list(,$wlen) = unpack ( "N*", substr ( $response, 0, 4 ) );             $this->_warning = substr ( $response, 4, $wlen );             return substr ( $response, 4+$wlen );         }         if ( $status==SEARCHD_ERROR )         {             $this->_error = "searchd error: " . substr ( $response, 4 );             return false;         }         if ( $status==SEARCHD_RETRY )         {             $this->_error = "temporary searchd error: " . substr ( $response, 4 );             return false;         }         if ( $status!=SEARCHD_OK )         {             $this->_error = "unknown status code '$status'";             return false;         }           // check version         if ( $ver<$client_ver )         {             $this->_warning = sprintf ( "searchd command v.%d.%d older than client's v.%d.%d, some options might not work",                 $ver>>8, $ver&0xff, $client_ver>>8, $client_ver&0xff );         }           return $response;     }       /////////////////////////////////////////////////////////////////////////////     // searching     /////////////////////////////////////////////////////////////////////////////       /// set offset and count into result set,     /// and optionally set max-matches and cutoff limits     function SetLimits ( $offset, $limit, $max=0, $cutoff=0 )     {         assert ( is_int($offset) );         assert ( is_int($limit) );         assert ( $offset>=0 );         assert ( $limit>0 );         assert ( $max>=0 );         $this->_offset = $offset;         $this->_limit = $limit;         if ( $max>0 )             $this->_maxmatches = $max;         if ( $cutoff>0 )             $this->_cutoff = $cutoff;     }       /// set maximum query time, in milliseconds, per-index     /// integer, 0 means "do not limit"     function SetMaxQueryTime ( $max )     {         assert ( is_int($max) );         assert ( $max>=0 );         $this->_maxquerytime = $max;     }       /// set matching mode     function SetMatchMode ( $mode )     {         trigger_error ( 'DEPRECATED: Do not call this method or, even better, use SphinxQL instead of an API', E_USER_DEPRECATED );         assert ( $mode==SPH_MATCH_ALL             || $mode==SPH_MATCH_ANY             || $mode==SPH_MATCH_PHRASE             || $mode==SPH_MATCH_BOOLEAN             || $mode==SPH_MATCH_EXTENDED             || $mode==SPH_MATCH_FULLSCAN             || $mode==SPH_MATCH_EXTENDED2 );         $this->_mode = $mode;     }       /// set ranking mode     function SetRankingMode ( $ranker, $rankexpr="" )     {         assert ( $ranker===0 || $ranker>=1 && $ranker<SPH_RANK_TOTAL );         assert ( is_string($rankexpr) );         $this->_ranker = $ranker;         $this->_rankexpr = $rankexpr;     }       /// set matches sorting mode     function SetSortMode ( $mode, $sortby="" )     {         assert (             $mode==SPH_SORT_RELEVANCE ||             $mode==SPH_SORT_ATTR_DESC ||             $mode==SPH_SORT_ATTR_ASC ||             $mode==SPH_SORT_TIME_SEGMENTS ||             $mode==SPH_SORT_EXTENDED ||             $mode==SPH_SORT_EXPR );         assert ( is_string($sortby) );         assert ( $mode==SPH_SORT_RELEVANCE || strlen($sortby)>0 );           $this->_sort = $mode;         $this->_sortby = $sortby;     }       /// bind per-field weights by order     /// DEPRECATED; use SetFieldWeights() instead     function SetWeights ( $weights )     {         die("This method is now deprecated; please use SetFieldWeights instead");     }       /// bind per-field weights by name     function SetFieldWeights ( $weights )     {         assert ( is_array($weights) );         foreach ( $weights as $name=>$weight )         {             assert ( is_string($name) );             assert ( is_int($weight) );         }         $this->_fieldweights = $weights;     }       /// bind per-index weights by name     function SetIndexWeights ( $weights )     {         assert ( is_array($weights) );         foreach ( $weights as $index=>$weight )         {             assert ( is_string($index) );             assert ( is_int($weight) );         }         $this->_indexweights = $weights;     }       /// set IDs range to match     /// only match records if document ID is beetwen $min and $max (inclusive)     function SetIDRange ( $min, $max )     {         assert ( is_numeric($min) );         assert ( is_numeric($max) );         assert ( $min<=$max );         $this->_min_id = $min;         $this->_max_id = $max;     }       /// set values set filter     /// only match records where $attribute value is in given set     function SetFilter ( $attribute, $values, $exclude=false )     {         assert ( is_string($attribute) );         assert ( is_array($values) );         assert ( count($values) );           if ( is_array($values) && count($values) )         {             foreach ( $values as $value )                 assert ( is_numeric($value) );               $this->_filters[] = array ( "type"=>SPH_FILTER_VALUES, "attr"=>$attribute, "exclude"=>$exclude, "values"=>$values );         }     }           /// set string filter     /// only match records where $attribute value is equal     function SetFilterString ( $attribute, $value, $exclude=false )     {         assert ( is_string($attribute) );         assert ( is_string($value) );         $this->_filters[] = array ( "type"=>SPH_FILTER_STRING, "attr"=>$attribute, "exclude"=>$exclude, "value"=>$value );     }         /// set range filter     /// only match records if $attribute value is beetwen $min and $max (inclusive)     function SetFilterRange ( $attribute, $min, $max, $exclude=false )     {         assert ( is_string($attribute) );         assert ( is_numeric($min) );         assert ( is_numeric($max) );         assert ( $min<=$max );           $this->_filters[] = array ( "type"=>SPH_FILTER_RANGE, "attr"=>$attribute, "exclude"=>$exclude, "min"=>$min, "max"=>$max );     }       /// set float range filter     /// only match records if $attribute value is beetwen $min and $max (inclusive)     function SetFilterFloatRange ( $attribute, $min, $max, $exclude=false )     {         assert ( is_string($attribute) );         assert ( is_float($min) );         assert ( is_float($max) );         assert ( $min<=$max );           $this->_filters[] = array ( "type"=>SPH_FILTER_FLOATRANGE, "attr"=>$attribute, "exclude"=>$exclude, "min"=>$min, "max"=>$max );     }       /// setup anchor point for geosphere distance calculations     /// required to use @geodist in filters and sorting     /// latitude and longitude must be in radians     function SetGeoAnchor ( $attrlat, $attrlong, $lat, $long )     {         assert ( is_string($attrlat) );         assert ( is_string($attrlong) );         assert ( is_float($lat) );         assert ( is_float($long) );           $this->_anchor = array ( "attrlat"=>$attrlat, "attrlong"=>$attrlong, "lat"=>$lat, "long"=>$long );     }       /// set grouping attribute and function     function SetGroupBy ( $attribute, $func, $groupsort="@group desc" )     {         assert ( is_string($attribute) );         assert ( is_string($groupsort) );         assert ( $func==SPH_GROUPBY_DAY             || $func==SPH_GROUPBY_WEEK             || $func==SPH_GROUPBY_MONTH             || $func==SPH_GROUPBY_YEAR             || $func==SPH_GROUPBY_ATTR             || $func==SPH_GROUPBY_ATTRPAIR );           $this->_groupby = $attribute;         $this->_groupfunc = $func;         $this->_groupsort = $groupsort;     }       /// set count-distinct attribute for group-by queries     function SetGroupDistinct ( $attribute )     {         assert ( is_string($attribute) );         $this->_groupdistinct = $attribute;     }       /// set distributed retries count and delay     function SetRetries ( $count, $delay=0 )     {         assert ( is_int($count) && $count>=0 );         assert ( is_int($delay) && $delay>=0 );         $this->_retrycount = $count;         $this->_retrydelay = $delay;     }       /// set result set format (hash or array; hash by default)     /// PHP specific; needed for group-by-MVA result sets that may contain duplicate IDs     function SetArrayResult ( $arrayresult )     {         assert ( is_bool($arrayresult) );         $this->_arrayresult = $arrayresult;     }       /// set attribute values override     /// there can be only one override per attribute     /// $values must be a hash that maps document IDs to attribute values     function SetOverride ( $attrname, $attrtype, $values )     {         trigger_error('DEPRECATED: Do not call this method. Use SphinxQL REMAP() function instead.', E_USER_DEPRECATED);         assert ( is_string ( $attrname ) );         assert ( in_array ( $attrtype, array ( SPH_ATTR_INTEGER, SPH_ATTR_TIMESTAMP, SPH_ATTR_BOOL, SPH_ATTR_FLOAT, SPH_ATTR_BIGINT ) ) );         assert ( is_array ( $values ) );           $this->_overrides[$attrname] = array ( "attr"=>$attrname, "type"=>$attrtype, "values"=>$values );     }       /// set select-list (attributes or expressions), SQL-like syntax     function SetSelect ( $select )     {         assert ( is_string ( $select ) );         $this->_select = $select;     }           function SetQueryFlag ( $flag_name, $flag_value )     {         $known_names = array ( "reverse_scan", "sort_method", "max_predicted_time", "boolean_simplify", "idf", "global_idf" );         $flags = array (         "reverse_scan" => array ( 0, 1 ),         "sort_method" => array ( "pq", "kbuffer" ),         "max_predicted_time" => array ( 0 ),         "boolean_simplify" => array ( true, false ),         "idf" => array ("normalized", "plain", "tfidf_normalized", "tfidf_unnormalized" ),         "global_idf" => array ( true, false ),         );                   assert ( isset ( $flag_name, $known_names ) );         assert ( in_array( $flag_value, $flags[$flag_name], true ) || ( $flag_name=="max_predicted_time" && is_int ( $flag_value ) && $flag_value>=0 ) );                   if ( $flag_name=="reverse_scan" )   $this->_query_flags = sphSetBit ( $this->_query_flags, 0, $flag_value==1 );         if ( $flag_name=="sort_method" )    $this->_query_flags = sphSetBit ( $this->_query_flags, 1, $flag_value=="kbuffer" );         if ( $flag_name=="max_predicted_time" )         {             $this->_query_flags = sphSetBit ( $this->_query_flags, 2, $flag_value>0 );             $this->_predictedtime = (int)$flag_value;         }         if ( $flag_name=="boolean_simplify" )   $this->_query_flags = sphSetBit ( $this->_query_flags, 3, $flag_value );         if ( $flag_name=="idf" && ( $flag_value=="normalized" || $flag_value=="plain" ) )   $this->_query_flags = sphSetBit ( $this->_query_flags, 4, $flag_value=="plain" );         if ( $flag_name=="global_idf" ) $this->_query_flags = sphSetBit ( $this->_query_flags, 5, $flag_value );         if ( $flag_name=="idf" && ( $flag_value=="tfidf_normalized" || $flag_value=="tfidf_unnormalized" ) )    $this->_query_flags = sphSetBit ( $this->_query_flags, 6, $flag_value=="tfidf_normalized" );     }           /// set outer order by parameters     function SetOuterSelect ( $orderby, $offset, $limit )     {         assert ( is_string($orderby) );         assert ( is_int($offset) );         assert ( is_int($limit) );         assert ( $offset>=0 );         assert ( $limit>0 );           $this->_outerorderby = $orderby;         $this->_outeroffset = $offset;         $this->_outerlimit = $limit;         $this->_hasouter = true;     }             //////////////////////////////////////////////////////////////////////////////       /// clear all filters (for multi-queries)     function ResetFilters ()     {         $this->_filters = array();         $this->_anchor = array();     }       /// clear groupby settings (for multi-queries)     function ResetGroupBy ()     {         $this->_groupby      = "";         $this->_groupfunc    = SPH_GROUPBY_DAY;         $this->_groupsort    = "@group desc";         $this->_groupdistinct= "";     }       /// clear all attribute value overrides (for multi-queries)     function ResetOverrides ()     {         $this->_overrides = array ();     }           function ResetQueryFlag ()     {         $this->_query_flags = sphSetBit ( 0, 6, true ); // default idf=tfidf_normalized         $this->_predictedtime = 0;     }       function ResetOuterSelect ()     {         $this->_outerorderby = '';         $this->_outeroffset = 0;         $this->_outerlimit = 0;         $this->_hasouter = false;     }       //////////////////////////////////////////////////////////////////////////////       /// connect to searchd server, run given search query through given indexes,     /// and return the search results     function Query ( $query, $index="*", $comment="" )     {         assert ( empty($this->_reqs) );           $this->AddQuery ( $query, $index, $comment );         $results = $this->RunQueries ();         $this->_reqs = array (); // just in case it failed too early           if ( !is_array($results) )             return false; // probably network error; error message should be already filled           $this->_error = $results[0]["error"];         $this->_warning = $results[0]["warning"];         if ( $results[0]["status"]==SEARCHD_ERROR )             return false;         else             return $results[0];     }       /// helper to pack floats in network byte order     function _PackFloat ( $f )     {         $t1 = pack ( "f", $f ); // machine order         list(,$t2) = unpack ( "L*", $t1 ); // int in machine order         return pack ( "N", $t2 );     }       /// add query to multi-query batch     /// returns index into results array from RunQueries() call     function AddQuery ( $query, $index="*", $comment="" )     {         // mbstring workaround         $this->_MBPush ();           // build request         $req = pack ( "NNNNN", $this->_query_flags, $this->_offset, $this->_limit, $this->_mode, $this->_ranker );         if ( $this->_ranker==SPH_RANK_EXPR )             $req .= pack ( "N", strlen($this->_rankexpr) ) . $this->_rankexpr;         $req .= pack ( "N", $this->_sort ); // (deprecated) sort mode         $req .= pack ( "N", strlen($this->_sortby) ) . $this->_sortby;         $req .= pack ( "N", strlen($query) ) . $query; // query itself         $req .= pack ( "N", count($this->_weights) ); // weights         foreach ( $this->_weights as $weight )             $req .= pack ( "N", (int)$weight );         $req .= pack ( "N", strlen($index) ) . $index; // indexes         $req .= pack ( "N", 1 ); // id64 range marker         $req .= sphPackU64 ( $this->_min_id ) . sphPackU64 ( $this->_max_id ); // id64 range           // filters         $req .= pack ( "N", count($this->_filters) );         foreach ( $this->_filters as $filter )         {             $req .= pack ( "N", strlen($filter["attr"]) ) . $filter["attr"];             $req .= pack ( "N", $filter["type"] );             switch ( $filter["type"] )             {                 case SPH_FILTER_VALUES:                     $req .= pack ( "N", count($filter["values"]) );                     foreach ( $filter["values"] as $value )                         $req .= sphPackI64 ( $value );                     break;                   case SPH_FILTER_RANGE:                     $req .= sphPackI64 ( $filter["min"] ) . sphPackI64 ( $filter["max"] );                     break;                   case SPH_FILTER_FLOATRANGE:                     $req .= $this->_PackFloat ( $filter["min"] ) . $this->_PackFloat ( $filter["max"] );                     break;                                       case SPH_FILTER_STRING:                     $req .= pack ( "N", strlen($filter["value"]) ) . $filter["value"];                     break;                   default:                     assert ( 0 && "internal error: unhandled filter type" );             }             $req .= pack ( "N", $filter["exclude"] );         }           // group-by clause, max-matches count, group-sort clause, cutoff count         $req .= pack ( "NN", $this->_groupfunc, strlen($this->_groupby) ) . $this->_groupby;         $req .= pack ( "N", $this->_maxmatches );         $req .= pack ( "N", strlen($this->_groupsort) ) . $this->_groupsort;         $req .= pack ( "NNN", $this->_cutoff, $this->_retrycount, $this->_retrydelay );         $req .= pack ( "N", strlen($this->_groupdistinct) ) . $this->_groupdistinct;           // anchor point         if ( empty($this->_anchor) )         {             $req .= pack ( "N", 0 );         } else         {             $a =& $this->_anchor;             $req .= pack ( "N", 1 );             $req .= pack ( "N", strlen($a["attrlat"]) ) . $a["attrlat"];             $req .= pack ( "N", strlen($a["attrlong"]) ) . $a["attrlong"];             $req .= $this->_PackFloat ( $a["lat"] ) . $this->_PackFloat ( $a["long"] );         }           // per-index weights         $req .= pack ( "N", count($this->_indexweights) );         foreach ( $this->_indexweights as $idx=>$weight )             $req .= pack ( "N", strlen($idx) ) . $idx . pack ( "N", $weight );           // max query time         $req .= pack ( "N", $this->_maxquerytime );           // per-field weights         $req .= pack ( "N", count($this->_fieldweights) );         foreach ( $this->_fieldweights as $field=>$weight )             $req .= pack ( "N", strlen($field) ) . $field . pack ( "N", $weight );           // comment         $req .= pack ( "N", strlen($comment) ) . $comment;           // attribute overrides         $req .= pack ( "N", count($this->_overrides) );         foreach ( $this->_overrides as $key => $entry )         {             $req .= pack ( "N", strlen($entry["attr"]) ) . $entry["attr"];             $req .= pack ( "NN", $entry["type"], count($entry["values"]) );             foreach ( $entry["values"] as $id=>$val )             {                 assert ( is_numeric($id) );                 assert ( is_numeric($val) );                   $req .= sphPackU64 ( $id );                 switch ( $entry["type"] )                 {                     case SPH_ATTR_FLOAT:    $req .= $this->_PackFloat ( $val ); break;                     case SPH_ATTR_BIGINT:   $req .= sphPackI64 ( $val ); break;                     default:                $req .= pack ( "N", $val ); break;                 }             }         }           // select-list         $req .= pack ( "N", strlen($this->_select) ) . $this->_select;                   // max_predicted_time         if ( $this->_predictedtime>0 )             $req .= pack ( "N", (int)$this->_predictedtime );                       $req .= pack ( "N", strlen($this->_outerorderby) ) . $this->_outerorderby;         $req .= pack ( "NN", $this->_outeroffset, $this->_outerlimit );         if ( $this->_hasouter )             $req .= pack ( "N", 1 );         else             $req .= pack ( "N", 0 );           // mbstring workaround         $this->_MBPop ();           // store request to requests array         $this->_reqs[] = $req;         return count($this->_reqs)-1;     }       /// connect to searchd, run queries batch, and return an array of result sets     function RunQueries ()     {         if ( empty($this->_reqs) )         {             $this->_error = "no queries defined, issue AddQuery() first";             return false;         }           // mbstring workaround         $this->_MBPush ();           if (!( $fp = $this->_Connect() ))         {             $this->_MBPop ();             return false;         }           // send query, get response         $nreqs = count($this->_reqs);         $req = join ( "", $this->_reqs );         $len = 8+strlen($req);         $req = pack ( "nnNNN", SEARCHD_COMMAND_SEARCH, VER_COMMAND_SEARCH, $len, 0, $nreqs ) . $req; // add header           if ( !( $this->_Send ( $fp, $req, $len+8 ) ) ||              !( $response = $this->_GetResponse ( $fp, VER_COMMAND_SEARCH ) ) )         {             $this->_MBPop ();             return false;         }           // query sent ok; we can reset reqs now         $this->_reqs = array ();           // parse and return response         return $this->_ParseSearchResponse ( $response, $nreqs );     }       /// parse and return search query (or queries) response     function _ParseSearchResponse ( $response, $nreqs )     {         $p = 0; // current position         $max = strlen($response); // max position for checks, to protect against broken responses           $results = array ();         for ( $ires=0; $ires<$nreqs && $p<$max; $ires++ )         {             $results[] = array();             $result =& $results[$ires];               $result["error"] = "";             $result["warning"] = "";               // extract status             list(,$status) = unpack ( "N*", substr ( $response, $p, 4 ) ); $p += 4;             $result["status"] = $status;             if ( $status!=SEARCHD_OK )             {                 list(,$len) = unpack ( "N*", substr ( $response, $p, 4 ) ); $p += 4;                 $message = substr ( $response, $p, $len ); $p += $len;                   if ( $status==SEARCHD_WARNING )                 {                     $result["warning"] = $message;                 } else                 {                     $result["error"] = $message;                     continue;                 }             }               // read schema             $fields = array ();             $attrs = array ();               list(,$nfields) = unpack ( "N*", substr ( $response, $p, 4 ) ); $p += 4;             while ( $nfields-->0 && $p<$max )             {                 list(,$len) = unpack ( "N*", substr ( $response, $p, 4 ) ); $p += 4;                 $fields[] = substr ( $response, $p, $len ); $p += $len;             }             $result["fields"] = $fields;               list(,$nattrs) = unpack ( "N*", substr ( $response, $p, 4 ) ); $p += 4;             while ( $nattrs-->0 && $p<$max  )             {                 list(,$len) = unpack ( "N*", substr ( $response, $p, 4 ) ); $p += 4;                 $attr = substr ( $response, $p, $len ); $p += $len;                 list(,$type) = unpack ( "N*", substr ( $response, $p, 4 ) ); $p += 4;                 $attrs[$attr] = $type;             }             $result["attrs"] = $attrs;               // read match count             list(,$count) = unpack ( "N*", substr ( $response, $p, 4 ) ); $p += 4;             list(,$id64) = unpack ( "N*", substr ( $response, $p, 4 ) ); $p += 4;               // read matches             $idx = -1;             while ( $count-->0 && $p<$max )             {                 // index into result array                 $idx++;                   // parse document id and weight                 if ( $id64 )                 {                     $doc = sphUnpackU64 ( substr ( $response, $p, 8 ) ); $p += 8;                     list(,$weight) = unpack ( "N*", substr ( $response, $p, 4 ) ); $p += 4;                 }                 else                 {                     list ( $doc, $weight ) = array_values ( unpack ( "N*N*",                         substr ( $response, $p, 8 ) ) );                     $p += 8;                     $doc = sphFixUint($doc);                 }                 $weight = sprintf ( "%u", $weight );                   // create match entry                 if ( $this->_arrayresult )                     $result["matches"][$idx] = array ( "id"=>$doc, "weight"=>$weight );                 else                     $result["matches"][$doc]["weight"] = $weight;                   // parse and create attributes                 $attrvals = array ();                 foreach ( $attrs as $attr=>$type )                 {                     // handle 64bit ints                     if ( $type==SPH_ATTR_BIGINT )                     {                         $attrvals[$attr] = sphUnpackI64 ( substr ( $response, $p, 8 ) ); $p += 8;                         continue;                     }                       // handle floats                     if ( $type==SPH_ATTR_FLOAT )                     {                         list(,$uval) = unpack ( "N*", substr ( $response, $p, 4 ) ); $p += 4;                         list(,$fval) = unpack ( "f*", pack ( "L", $uval ) );                         $attrvals[$attr] = $fval;                         continue;                     }                       // handle everything else as unsigned ints                     list(,$val) = unpack ( "N*", substr ( $response, $p, 4 ) ); $p += 4;                     if ( $type==SPH_ATTR_MULTI )                     {                         $attrvals[$attr] = array ();                         $nvalues = $val;                         while ( $nvalues-->0 && $p<$max )                         {                             list(,$val) = unpack ( "N*", substr ( $response, $p, 4 ) ); $p += 4;                             $attrvals[$attr][] = sphFixUint($val);                         }                     } else if ( $type==SPH_ATTR_MULTI64 )                     {                         $attrvals[$attr] = array ();                         $nvalues = $val;                         while ( $nvalues>0 && $p<$max )                         {                             $attrvals[$attr][] = sphUnpackI64 ( substr ( $response, $p, 8 ) ); $p += 8;                             $nvalues -= 2;                         }                     } else if ( $type==SPH_ATTR_STRING )                     {                         $attrvals[$attr] = substr ( $response, $p, $val );                         $p += $val;                                         } else if ( $type==SPH_ATTR_FACTORS )                     {                         $attrvals[$attr] = substr ( $response, $p, $val-4 );                         $p += $val-4;                                           } else                     {                         $attrvals[$attr] = sphFixUint($val);                     }                 }                   if ( $this->_arrayresult )                     $result["matches"][$idx]["attrs"] = $attrvals;                 else                     $result["matches"][$doc]["attrs"] = $attrvals;             }               list ( $total, $total_found, $msecs, $words ) =                 array_values ( unpack ( "N*N*N*N*", substr ( $response, $p, 16 ) ) );             $result["total"] = sprintf ( "%u", $total );             $result["total_found"] = sprintf ( "%u", $total_found );             $result["time"] = sprintf ( "%.3f", $msecs/1000 );             $p += 16;               while ( $words-->0 && $p<$max )             {                 list(,$len) = unpack ( "N*", substr ( $response, $p, 4 ) ); $p += 4;                 $word = substr ( $response, $p, $len ); $p += $len;                 list ( $docs, $hits ) = array_values ( unpack ( "N*N*", substr ( $response, $p, 8 ) ) ); $p += 8;                 $result["words"][$word] = array (                     "docs"=>sprintf ( "%u", $docs ),                     "hits"=>sprintf ( "%u", $hits ) );             }         }           $this->_MBPop ();         return $results;     }       /////////////////////////////////////////////////////////////////////////////     // excerpts generation     /////////////////////////////////////////////////////////////////////////////       /// connect to searchd server, and generate exceprts (snippets)     /// of given documents for given query. returns false on failure,     /// an array of snippets on success     function BuildExcerpts ( $docs, $index, $words, $opts=array() )     {         assert ( is_array($docs) );         assert ( is_string($index) );         assert ( is_string($words) );         assert ( is_array($opts) );           $this->_MBPush ();           if (!( $fp = $this->_Connect() ))         {             $this->_MBPop();             return false;         }           /////////////////         // fixup options         /////////////////           if ( !isset($opts["before_match"]) )        $opts["before_match"] = "<b>";         if ( !isset($opts["after_match"]) )         $opts["after_match"] = "</b>";         if ( !isset($opts["chunk_separator"]) )     $opts["chunk_separator"] = " ... ";         if ( !isset($opts["limit"]) )               $opts["limit"] = 256;         if ( !isset($opts["limit_passages"]) )      $opts["limit_passages"] = 0;         if ( !isset($opts["limit_words"]) )         $opts["limit_words"] = 0;         if ( !isset($opts["around"]) )              $opts["around"] = 5;         if ( !isset($opts["exact_phrase"]) )        $opts["exact_phrase"] = false;         if ( !isset($opts["single_passage"]) )      $opts["single_passage"] = false;         if ( !isset($opts["use_boundaries"]) )      $opts["use_boundaries"] = false;         if ( !isset($opts["weight_order"]) )        $opts["weight_order"] = false;         if ( !isset($opts["query_mode"]) )          $opts["query_mode"] = false;         if ( !isset($opts["force_all_words"]) )     $opts["force_all_words"] = false;         if ( !isset($opts["start_passage_id"]) )    $opts["start_passage_id"] = 1;         if ( !isset($opts["load_files"]) )          $opts["load_files"] = false;         if ( !isset($opts["html_strip_mode"]) )     $opts["html_strip_mode"] = "index";         if ( !isset($opts["allow_empty"]) )         $opts["allow_empty"] = false;         if ( !isset($opts["passage_boundary"]) )    $opts["passage_boundary"] = "none";         if ( !isset($opts["emit_zones"]) )          $opts["emit_zones"] = false;         if ( !isset($opts["load_files_scattered"]) )        $opts["load_files_scattered"] = false;                     /////////////////         // build request         /////////////////           // v.1.2 req         $flags = 1; // remove spaces         if ( $opts["exact_phrase"] )    $flags |= 2;         if ( $opts["single_passage"] )  $flags |= 4;         if ( $opts["use_boundaries"] )  $flags |= 8;         if ( $opts["weight_order"] )    $flags |= 16;         if ( $opts["query_mode"] )      $flags |= 32;         if ( $opts["force_all_words"] ) $flags |= 64;         if ( $opts["load_files"] )      $flags |= 128;         if ( $opts["allow_empty"] )     $flags |= 256;         if ( $opts["emit_zones"] )      $flags |= 512;         if ( $opts["load_files_scattered"] )    $flags |= 1024;         $req = pack ( "NN", 0, $flags ); // mode=0, flags=$flags         $req .= pack ( "N", strlen($index) ) . $index; // req index         $req .= pack ( "N", strlen($words) ) . $words; // req words           // options         $req .= pack ( "N", strlen($opts["before_match"]) ) . $opts["before_match"];         $req .= pack ( "N", strlen($opts["after_match"]) ) . $opts["after_match"];         $req .= pack ( "N", strlen($opts["chunk_separator"]) ) . $opts["chunk_separator"];         $req .= pack ( "NN", (int)$opts["limit"], (int)$opts["around"] );         $req .= pack ( "NNN", (int)$opts["limit_passages"], (int)$opts["limit_words"], (int)$opts["start_passage_id"] ); // v.1.2         $req .= pack ( "N", strlen($opts["html_strip_mode"]) ) . $opts["html_strip_mode"];         $req .= pack ( "N", strlen($opts["passage_boundary"]) ) . $opts["passage_boundary"];           // documents         $req .= pack ( "N", count($docs) );         foreach ( $docs as $doc )         {             assert ( is_string($doc) );             $req .= pack ( "N", strlen($doc) ) . $doc;         }           ////////////////////////////         // send query, get response         ////////////////////////////           $len = strlen($req);         $req = pack ( "nnN", SEARCHD_COMMAND_EXCERPT, VER_COMMAND_EXCERPT, $len ) . $req; // add header         if ( !( $this->_Send ( $fp, $req, $len+8 ) ) ||              !( $response = $this->_GetResponse ( $fp, VER_COMMAND_EXCERPT ) ) )         {             $this->_MBPop ();             return false;         }           //////////////////         // parse response         //////////////////           $pos = 0;         $res = array ();         $rlen = strlen($response);         for ( $i=0; $i<count($docs); $i++ )         {             list(,$len) = unpack ( "N*", substr ( $response, $pos, 4 ) );             $pos += 4;               if ( $pos+$len > $rlen )             {                 $this->_error = "incomplete reply";                 $this->_MBPop ();                 return false;             }             $res[] = $len ? substr ( $response, $pos, $len ) : "";             $pos += $len;         }           $this->_MBPop ();         return $res;     }         /////////////////////////////////////////////////////////////////////////////     // keyword generation     /////////////////////////////////////////////////////////////////////////////       /// connect to searchd server, and generate keyword list for a given query     /// returns false on failure,     /// an array of words on success     function BuildKeywords ( $query, $index, $hits )     {         assert ( is_string($query) );         assert ( is_string($index) );         assert ( is_bool($hits) );           $this->_MBPush ();           if (!( $fp = $this->_Connect() ))         {             $this->_MBPop();             return false;         }           /////////////////         // build request         /////////////////           // v.1.0 req         $req  = pack ( "N", strlen($query) ) . $query; // req query         $req .= pack ( "N", strlen($index) ) . $index; // req index         $req .= pack ( "N", (int)$hits );           ////////////////////////////         // send query, get response         ////////////////////////////           $len = strlen($req);         $req = pack ( "nnN", SEARCHD_COMMAND_KEYWORDS, VER_COMMAND_KEYWORDS, $len ) . $req; // add header         if ( !( $this->_Send ( $fp, $req, $len+8 ) ) ||              !( $response = $this->_GetResponse ( $fp, VER_COMMAND_KEYWORDS ) ) )         {             $this->_MBPop ();             return false;         }           //////////////////         // parse response         //////////////////           $pos = 0;         $res = array ();         $rlen = strlen($response);         list(,$nwords) = unpack ( "N*", substr ( $response, $pos, 4 ) );         $pos += 4;         for ( $i=0; $i<$nwords; $i++ )         {             list(,$len) = unpack ( "N*", substr ( $response, $pos, 4 ) );   $pos += 4;             $tokenized = $len ? substr ( $response, $pos, $len ) : "";             $pos += $len;               list(,$len) = unpack ( "N*", substr ( $response, $pos, 4 ) );   $pos += 4;             $normalized = $len ? substr ( $response, $pos, $len ) : "";             $pos += $len;               $res[] = array ( "tokenized"=>$tokenized, "normalized"=>$normalized );               if ( $hits )             {                 list($ndocs,$nhits) = array_values ( unpack ( "N*N*", substr ( $response, $pos, 8 ) ) );                 $pos += 8;                 $res [$i]["docs"] = $ndocs;                 $res [$i]["hits"] = $nhits;             }               if ( $pos > $rlen )             {                 $this->_error = "incomplete reply";                 $this->_MBPop ();                 return false;             }         }           $this->_MBPop ();         return $res;     }       function EscapeString ( $string )     {         $from = array ( '\\', '(',')','|','-','!','@','~','"','&', '/', '^', '$', '=', '<' );         $to   = array ( '\\\\', '\(','\)','\|','\-','\!','\@','\~','\"', '\&', '\/', '\^', '\$', '\=', '\<' );           return str_replace ( $from, $to, $string );     }       /////////////////////////////////////////////////////////////////////////////     // attribute updates     /////////////////////////////////////////////////////////////////////////////       /// batch update given attributes in given rows in given indexes     /// returns amount of updated documents (0 or more) on success, or -1 on failure     function UpdateAttributes ( $index, $attrs, $values, $mva=false, $ignorenonexistent=false )     {         // verify everything         assert ( is_string($index) );         assert ( is_bool($mva) );         assert ( is_bool($ignorenonexistent) );           assert ( is_array($attrs) );         foreach ( $attrs as $attr )             assert ( is_string($attr) );           assert ( is_array($values) );         foreach ( $values as $id=>$entry )         {             assert ( is_numeric($id) );             assert ( is_array($entry) );             assert ( count($entry)==count($attrs) );             foreach ( $entry as $v )             {                 if ( $mva )                 {                     assert ( is_array($v) );                     foreach ( $v as $vv )                         assert ( is_int($vv) );                 } else                     assert ( is_int($v) );             }         }           // build request         $this->_MBPush ();         $req = pack ( "N", strlen($index) ) . $index;           $req .= pack ( "N", count($attrs) );         $req .= pack ( "N", $ignorenonexistent ? 1 : 0 );         foreach ( $attrs as $attr )         {             $req .= pack ( "N", strlen($attr) ) . $attr;             $req .= pack ( "N", $mva ? 1 : 0 );         }           $req .= pack ( "N", count($values) );         foreach ( $values as $id=>$entry )         {             $req .= sphPackU64 ( $id );             foreach ( $entry as $v )             {                 $req .= pack ( "N", $mva ? count($v) : $v );                 if ( $mva )                     foreach ( $v as $vv )                         $req .= pack ( "N", $vv );             }         }           // connect, send query, get response         if (!( $fp = $this->_Connect() ))         {             $this->_MBPop ();             return -1;         }           $len = strlen($req);         $req = pack ( "nnN", SEARCHD_COMMAND_UPDATE, VER_COMMAND_UPDATE, $len ) . $req; // add header         if ( !$this->_Send ( $fp, $req, $len+8 ) )         {             $this->_MBPop ();             return -1;         }           if (!( $response = $this->_GetResponse ( $fp, VER_COMMAND_UPDATE ) ))         {             $this->_MBPop ();             return -1;         }           // parse response         list(,$updated) = unpack ( "N*", substr ( $response, 0, 4 ) );         $this->_MBPop ();         return $updated;     }       /////////////////////////////////////////////////////////////////////////////     // persistent connections     /////////////////////////////////////////////////////////////////////////////       function Open()     {         if ( $this->_socket !== false )         {             $this->_error = 'already connected';             return false;         }         if ( !$fp = $this->_Connect() )             return false;           // command, command version = 0, body length = 4, body = 1         $req = pack ( "nnNN", SEARCHD_COMMAND_PERSIST, 0, 4, 1 );         if ( !$this->_Send ( $fp, $req, 12 ) )             return false;           $this->_socket = $fp;         return true;     }       function Close()     {         if ( $this->_socket === false )         {             $this->_error = 'not connected';             return false;         }           fclose ( $this->_socket );         $this->_socket = false;                   return true;     }       //////////////////////////////////////////////////////////////////////////     // status     //////////////////////////////////////////////////////////////////////////       function Status ($session=false)     {         assert ( is_bool($session) );           $this->_MBPush ();         if (!( $fp = $this->_Connect() ))         {             $this->_MBPop();             return false;         }           $req = pack ( "nnNN", SEARCHD_COMMAND_STATUS, VER_COMMAND_STATUS, 4, $session?0:1 ); // len=4, body=1         if ( !( $this->_Send ( $fp, $req, 12 ) ) ||              !( $response = $this->_GetResponse ( $fp, VER_COMMAND_STATUS ) ) )         {             $this->_MBPop ();             return false;         }           $res = substr ( $response, 4 ); // just ignore length, error handling, etc         $p = 0;         list ( $rows, $cols ) = array_values ( unpack ( "N*N*", substr ( $response, $p, 8 ) ) ); $p += 8;           $res = array();         for ( $i=0; $i<$rows; $i++ )             for ( $j=0; $j<$cols; $j++ )         {             list(,$len) = unpack ( "N*", substr ( $response, $p, 4 ) ); $p += 4;             $res[$i][] = substr ( $response, $p, $len ); $p += $len;         }           $this->_MBPop ();         return $res;     }       //////////////////////////////////////////////////////////////////////////     // flush     //////////////////////////////////////////////////////////////////////////       function FlushAttributes ()     {         $this->_MBPush ();         if (!( $fp = $this->_Connect() ))         {             $this->_MBPop();             return -1;         }           $req = pack ( "nnN", SEARCHD_COMMAND_FLUSHATTRS, VER_COMMAND_FLUSHATTRS, 0 ); // len=0         if ( !( $this->_Send ( $fp, $req, 8 ) ) ||              !( $response = $this->_GetResponse ( $fp, VER_COMMAND_FLUSHATTRS ) ) )         {             $this->_MBPop ();             return -1;         }           $tag = -1;         if ( strlen($response)==4 )             list(,$tag) = unpack ( "N*", $response );         else             $this->_error = "unexpected response length";           $this->_MBPop ();         return $tag;     } }   // // $Id: sphinxapi.php 4885 2015-01-20 07:02:07Z deogar $ //