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Homephp教程php手册PHP 四种URL解析处理方式的例子

在已知URL参数的情况下,我们可以根据自身情况采用$_GET来获取相应的参数信息($_GET[\'name\']);那在未知情况下如何获取到URL上的参数信息呢?

第一种:利用$_SERVER内置数组变量

相对较为原始的$_SERVER['QUERY_STRING']来获取,URL的参数,通常使用这个变量返回的会是类似这样的数据:name=tank&sex=1

如果需要包含文件名的话可以使用$_SERVER["REQUEST_URI"](返回类似:/index.php?name=tank&sex=1)

第二种:利用pathinfo内置函数

<?php
$test = pathinfo("http://localhost/index.php");
print_r($test);
/*
 结果如下 
 Array 
 ( 
 [dirname] => http://localhost //url的路径 
 [basename] => index.php  //完整文件名 
 [extension] => php  //文件名后缀 
 [filename] => index //文件名 
 ) 
*/
?>

第三种:利用parse_url内置函数

<?php
$test = parse_url("http://localhost/index.php?name=tank&sex=1#top");
    print_r($test);
    /*
    结果如下
    Array
    (
    [scheme] => http //使用什么协议
    [host] => localhost //主机名
    [path] => /index.php //路径
    [query] => name=tank&sex=1 // 所传的参数
    [fragment] => top //后面根的锚点
    )
    */
?>

第四种:利用basename内置函数

<?php
    $test = basename("http://localhost/index.php?name=tank&sex=1#top"); 
echo $test;
/*
结果如下
index.php?name=tank&sex=1#top
*/
?>

另外,还有就是自己通过正则匹配的处理方式来获取需要的值了,这种方式较为精确,效率暂不考虑,下面拓展实践下正则处理方式:


<?php
preg_match_all("/(\w+=\w+)(#\w+)?/i", "http://localhost/index.php?name=tank&sex=1#top", $match);
print_r($match);
/*
结果如下
Array
(
[0] => Array
(
[0] => name=tank
[1] => sex=1#top
)
[1] => Array
(
[0] => name=tank
[1] => sex=1
)
[2] => Array
(
[0] =>
[1] => #top
)
)
*/



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