本文实例讲述了php自定义扩展名获取函数。分享给大家供大家参考，具体如下：
<?php
$url = "http://www.abc.com/abc/de/fg.php?id=1";
//这个是自己写的
function geturl($url) {
$date = explode('?', $url);
$date = basename($date[0]);
$date = explode('.', $date);
return $date[1];
}
var_dump(geturl($url));
//下面两个是网上弄的
function getext($url){
$arr = parse_url($url);
$file = basename($arr['path']);
$ext = explode(".",$file);
return $ext[1];
}
var_dump(getext($url));
function getname($url) {
$w_param = pathinfo($url);
$str = $w_param['extension'];
list($type, $vars) = explode('?',$str);
return $type;
}
echo 'start3'.date("y-m-d h:i:s");