$_SERVER
1,$_SERVER["QUERY_STRING"]
说明:查询(query)的字符串
2,$_SERVER["REQUEST_URI"]
说明:访问此页面所需的URI
3,$_SERVER["SCRIPT_NAME"]
说明:包含当前脚本的路径
4,$_SERVER["PHP_SELF"]
说明:当前正在执行脚本的文件名
实例:
1,http://www.biuuu.com/ (直接打开主页)
结果:
$_SERVER["QUERY_STRING"] = ""
$_SERVER["REQUEST_URI"] = "/"
$_SERVER["SCRIPT_NAME"] = "/index.php"
$_SERVER["PHP_SELF"]
= "/index.php"
2,http://www.biuuu.com/?p=222 (附带查询)
结果:
$_SERVER["QUERY_STRING"] = "p=222"
$_SERVER["REQUEST_URI"] = "/?p=222"
$_SERVER["SCRIPT_NAME"] = "/index.php"
$_SERVER["PHP_SELF"]
= "/index.php"
3,http://www.biuuu.com/index.php?p=222&q=biuuu
结果:
$_SERVER["QUERY_STRING"] =
"p=222&q=biuuu"
$_SERVER["REQUEST_URI"] =
"/index.php?p=222&q=biuuu"
$_SERVER["SCRIPT_NAME"] = "/index.php"
$_SERVER["PHP_SELF"]
= "/index.php"
$_SERVER["QUERY_STRING"]获取查询语句,实例中可知,获取的是?后面的值
$_SERVER["REQUEST_URI"]
获取http://www.biuuu.com后面的值,包括/
$_SERVER["SCRIPT_NAME"]
获取当前脚本的路径,如:index.php
$_SERVER["PHP_SELF"]
当前正在执行脚本的文件名
当前url:"http://".$_SERVER['HTTP_HOST'].$_SERVER['PHP_SELF']
总结一下,对于QUERY_STRING,REQUEST_URI,SCRIPT_NAME和PHP_SELF,深入了解将有利于我们在$_SERVER函数中正确调用这四个值。通过实例详解$_SERVER函数中QUERY_STRING,REQUEST_URI,SCRIPT_NAME和PHP_SELF掌握四个变量之间的区别。
$_SERVER["REQUEST_URI"] :获取当前请求的完整的(除域名的)url。。。
uchome系统中处理技巧:
代码
//处理REQUEST_URI
if(!isset($_SERVER['REQUEST_URI']))
{
$_SERVER['REQUEST_URI'] = $_SERVER['PHP_SELF'];
if(isset($_SERVER['QUERY_STRING']))
$_SERVER['REQUEST_URI'] .=
'?'.$_SERVER['QUERY_STRING'];
}
if($_SERVER['REQUEST_URI']) {
$temp = urldecode($_SERVER['REQUEST_URI']);
if(strexists($temp, '<') ||
strexists($temp, '"')) {
$_GET =
shtmlspecialchars($_GET);//XSS
}
}
代码如下:
代码
<?php
echo $_SERVER['DOCUMENT_ROOT']."<br>";
//获得服务器文档根变量
echo $_SERVER['PHP_SELF']."<br>";
//获得执行该代码的文件服务器绝对路径的变量
echo __FILE__."<br>"; //获得文件的文件系统绝对路径的变量
echo dirname(__FILE__); //获得文件所在的文件夹路径的函数
?>
//server函数
$_SERVER["HTTP_REFERER"]=http://localhost/lianxi/
$_SERVER["HTTP_ACCEPT_LANGUAGE"]=zh-cn
$_SERVER["HTTP_ACCEPT_ENCODING"]=gzip, deflate
$_SERVER["HTTP_USER_AGENT"]=Mozilla/4.0 (compatible; MSIE 6.0;
Windows NT 5.2; .NET CLR 1.1.4322; .NET CLR 2.0.50727)
$_SERVER["HTTP_HOST"]=localhost
$_SERVER["HTTP_CONNECTION"]=Keep-Alive
$_SERVER["PATH"]=C:\WINDOWS\system32;C:\WINDOWS;C:\WINDOWS\System32\Wbem;C:\Program
Files\Common Files\Adobe\AGL;C:\Program Files\MySQL\MySQL Server
5.0\bin;C:\php;C:\php\ext
$_SERVER["SystemRoot"]=C:\WINDOWS
$_SERVER["COMSPEC"]=C:\WINDOWS\system32\cmd.exe
$_SERVER["PATHEXT"]=.COM;.EXE;.BAT;.CMD;.VBS;.VBE;.JS;.JSE;.WSF;.WSH
$_SERVER["WINDIR"]=C:\WINDOWS
$_SERVER["SERVER_SIGNATURE"]=
Apache/2.0.55 (Win32) PHP/5.1.1 Server at localhost Port 80
\\使用的何服务器
$_SERVER["SERVER_SOFTWARE"]=Apache/2.0.55 (Win32) PHP/5.1.1
$_SERVER["SERVER_NAME"]=localhost \\服务器名称
$_SERVER["SERVER_ADDR"]=127.0.0.1
$_SERVER["SERVER_PORT"]=80 \\服务器端口
$_SERVER["REMOTE_ADDR"]=127.0.0.1
$_SERVER["DOCUMENT_ROOT"]=D:/lianxi \\网站的主目录
$_SERVER["SERVER_ADMIN"]=sss@163.com \\安装APACHE时设置的邮箱
$_SERVER["SCRIPT_FILENAME"]=D:/lianxi/lianxi/servervalues.php
\\当前的网页的绝对路径,
$_SERVER["REMOTE_PORT"]=1076 \\远程端口
$_SERVER["GATEWAY_INTERFACE"]=CGI/1.1
$_SERVER["SERVER_PROTOCOL"]=HTTP/1.1
$_SERVER["REQUEST_METHOD"]=GET
$_SERVER["QUERY_STRING"]=\\获取?号后面的内容
$_SERVER["REQUEST_URI"]=例子:/lianxi/servervalues.php?a=1&b=2
$_SERVER["SCRIPT_NAME"]=例子:/lianxi/servervalues.php
$_SERVER["PHP_SELF"]=/lianxi/servervalues.php \\返回当前网页的相对路径.
$_SERVER["REQUEST_TIME"]=1179190013 \\运行时间
单位为十万分之一毫秒
$_SERVER["argv"]=Array
$_SERVER["argc"]=0
1,$_SERVER["QUERY_STRING"]
说明:查询(query)的字符串
2,$_SERVER["REQUEST_URI"]
说明:访问此页面所需的URI
3,$_SERVER["SCRIPT_NAME"]
说明:包含当前脚本的路径
4,$_SERVER["PHP_SELF"]
说明:当前正在执行脚本的文件名
实例:
1,http://www.biuuu.com/
(直接打开主页)
结果:
$_SERVER["QUERY_STRING"] = “”
$_SERVER["REQUEST_URI"] = “/”
$_SERVER["SCRIPT_NAME"] = “/index.php”
$_SERVER["PHP_SELF"] = “/index.php”
2,http://www.biuuu.com/?p=222
(附带查询)
结果:
$_SERVER["QUERY_STRING"] = “p=222″
$_SERVER["REQUEST_URI"] = “/?p=222″
$_SERVER["SCRIPT_NAME"] = “/index.php”
$_SERVER["PHP_SELF"] = “/index.php”
3,http://www.biuuu.com/index.php?p=222&q=biuuu
结果:
$_SERVER["QUERY_STRING"] = “p=222&q=biuuu”
$_SERVER["REQUEST_URI"] =
“/index.php?p=222&q=biuuu”
$_SERVER["SCRIPT_NAME"] = “/index.php”
$_SERVER["PHP_SELF"] = “/index.php”
$_SERVER["QUERY_STRING"]获取查询语句,实例中可知,获取的是?后面的值
$_SERVER["REQUEST_URI"]
获取http://www.biuuu.com后面的值,包括/
$_SERVER["SCRIPT_NAME"]
获取当前脚本的路径,如:index.php
$_SERVER["PHP_SELF"]
当前正在执行脚本的文件名
代码
<?php
// test.php:
echo “test1.php variables
<br />”;
echo “getcwd: “, getcwd(), “<br
/>”;
echo “__FILE__: “, __FILE__, “<br
/>”;
echo“REQUEST_URI: “, $_SERVER["REQUEST_URI"], “<br
/>”;
echo“SCRIPT_NAME: “, $_SERVER["SCRIPT_NAME"], “<br
/>”;
echo “PHP_SELF: “, $_SERVER["PHP_SELF"], “<br
/>”;
echo“SCRIPT_FILENAME “,
$_SERVER["SCRIPT_FILENAME"] ,
“<br />”;
//
把 test2.php
包含进来,
在 test2.php
里输出上面的变量,看有什么不同:
include_once(”test2/test2.php”);
?>