php读取txt文件组成SQL并插入数据库（原创自Zjmainstay）

/**
 * $splitChar 字段分隔符
 * $file 数据文件文件名
 * $table 数据库表名
 * $conn 数据库连接
 * $fields 数据对应的列名
 * $insertType 插入操作类型，包括INSERT,REPLACE
 */
function loadTxtDataIntoDatabase($splitChar,$file,$table,$conn,$fields=array(),$insertType='INSERT'){}

<?php
/**
 * $splitChar 字段分隔符
 * $file 数据文件文件名
 * $table 数据库表名
 * $conn 数据库连接
 * $fields 数据对应的列名
 * $insertType 插入操作类型，包括INSERT,REPLACE
 */
function loadTxtDataIntoDatabase($splitChar,$file,$table,$conn,$fields=array(),$insertType='INSERT'){
    if(empty($fields)) $head = "{$insertType} INTO `{$table}` VALUES('";
    else $head = "{$insertType} INTO `{$table}`(`".implode('`,`',$fields)."`) VALUES('";    //数据头
    $end = "')";
    $sqldata = trim(file_get_contents($file));
    if(preg_replace('/\s*/i','',$splitChar) == '') {
        $splitChar = '/(\w+)(\s+)/i';
        $replace = "$1','";
        $specialFunc = 'preg_replace';
    }else {
        $splitChar = $splitChar;
        $replace = "','";
        $specialFunc = 'str_replace';
    }
    //处理数据体，二者顺序不可换，否则空格或Tab分隔符时出错
    $sqldata = preg_replace('/(\s*)(\n+)(\s*)/i','\'),(\'',$sqldata);    //替换换行
    $sqldata = $specialFunc($splitChar,$replace,$sqldata);                //替换分隔符
    $query = $head.$sqldata.$end;    //数据拼接
    if(mysql_query($query,$conn)) return array(true);
    else {
        return array(false,mysql_error($conn),mysql_errno($conn));
    }
}

//调用示例1
require 'db.php';
$splitChar = '|';    //竖线
$file = 'sqldata1.txt';
$fields = array('id','parentid','name');
$table = 'cengji';
$result = loadTxtDataIntoDatabase($splitChar,$file,$table,$conn,$fields);
if (array_shift($result)){
    echo 'Success!<br/>';
}else {
    echo 'Failed!--Error:'.array_shift($result).'<br/>';
}
/*sqlda ta1.txt
1|0|A
2|1|B
3|1|C
4|2|D

-- cengji
CREATE TABLE `cengji` (
  `id` int(11) NOT NULL AUTO_INCREMENT,
  `parentid` int(11) NOT NULL,
  `name` varchar(255) DEFAULT NULL,
  PRIMARY KEY (`id`),
  UNIQUE KEY `parentid_name_unique` (`parentid`,`name`) USING BTREE
) ENGINE=InnoDB AUTO_INCREMENT=1602 DEFAULT CHARSET=utf8
*/

//调用示例2
require 'db.php';
$splitChar = ' ';    //空格
$file = 'sqldata2.txt';
$fields = array('id','make','model','year');
$table = 'cars';
$result = loadTxtDataIntoDatabase($splitChar,$file,$table,$conn,$fields);
if (array_shift($result)){
    echo 'Success!<br/>';
}else {
    echo 'Failed!--Error:'.array_shift($result).'<br/>';
}
/* sqldata2.txt
11 Aston DB19 2009
12 Aston DB29 2009
13 Aston DB39 2009

-- cars
CREATE TABLE `cars` (
  `id` int(11) NOT NULL AUTO_INCREMENT,
  `make` varchar(16) NOT NULL,
  `model` varchar(16) DEFAULT NULL,
  `year` varchar(16) DEFAULT NULL,
  PRIMARY KEY (`id`)
) ENGINE=InnoDB AUTO_INCREMENT=14 DEFAULT CHARSET=utf8
*/

//调用示例3
require 'db.php';
$splitChar = '    ';    //Tab
$file = 'sqldata3.txt';
$fields = array('id','make','model','year');
$table = 'cars';
$insertType = 'REPLACE';
$result = loadTxtDataIntoDatabase($splitChar,$file,$table,$conn,$fields,$insertType);
if (array_shift($result)){
    echo 'Success!<br/>';
}else {
    echo 'Failed!--Error:'.array_shift($result).'<br/>';
}
/* sqldata3.txt
11    Aston    DB19    2009
12    Aston    DB29    2009
13    Aston    DB39    2009 
*/

//调用示例4
require 'db.php';
$splitChar = '    ';    //Tab
$file = 'sqldata3.txt';
$fields = array('id','value');
$table = 'notExist';    //不存在表
$result = loadTxtDataIntoDatabase($splitChar,$file,$table,$conn,$fields);
if (array_shift($result)){
    echo 'Success!<br/>';
}else {
    echo 'Failed!--Error:'.array_shift($result).'<br/>';
}

//附：db.php
/*    //注释这一行可全部释放
?>
<?php
static $connect = null;
static $table = 'jilian';
if(!isset($connect)) {
    $connect = mysql_connect("localhost","root","");
    if(!$connect) {
        $connect = mysql_connect("localhost","Zjmainstay","");
    }
    if(!$connect) {
        die('Can not connect to database.Fatal error handle by /test/db.php');
    }
    mysql_select_db("test",$connect);
    mysql_query("SET NAMES utf8",$connect);
    $conn = &$connect;
    $db = &$connect;
}
?>
//*/

-- 数据表结构：

-- 100000_insert,1000000_insert

CREATE TABLE `100000_insert` (
  `id` int(11) NOT NULL AUTO_INCREMENT,
  `parentid` int(11) NOT NULL,
  `name` varchar(255) DEFAULT NULL,
  PRIMARY KEY (`id`)
) ENGINE=InnoDB AUTO_INCREMENT=1 DEFAULT CHARSET=utf8

 100000 （10万）行插入：Insert 100000_line_data use 2.5534288883209 seconds

 1000000（100万）行插入：Insert 1000000_line_data use 19.677318811417 seconds

//可能报错：MySQL server has gone away

//解决：修改my.ini/my.cnf   max_allowed_packet=20M