标准URL:http://www.sina.com.cn/abc/de/fg.php?id=1
利用parse_url函数解析路由,结果如下:
array(4) {
["scheme"]=>
string(4) "http"
["host"]=>
string(15) "www.sina.com.cn"
["path"]=>
string(14) "/abc/de/fg.php"
["query"]=>
string(14) "id=1&name=wang"
}
Code:
<?php
$url = 'http://www.sina.com.cn/abc/de/fg.php?id=1&name=wang';
$u = parse_url($url);
$path = $u['path'] ?? '';
$ext = ltrim(strrchr($path, '.'), '.');
echo $ext;
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