php如何获取url的参数

<?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

)

*/

?>

$refer = $_SERVER['HTTP_REFERER'];

$parArr = parse_url ( $refer );

if(isset($parArr['query']) && $parArr['query']){

parse_str($parArr ['query'],$data);

$code_user_id = isset($data['user_id'])? $data['user_id']:'';

}