php函数parse_url

1.需求

了解parse_url的使用方法

2.实例

$uri = parse_url('http://dummy'.$_SERVER['REQUEST_URI']);
var_dump($uri);

array (size=3)
  'scheme' => string 'http' (length=4)
  'host' => string 'dummy' (length=5)
  'path' => string '/test.php' (length=9)

3.手册怎么说

用来分解url的，分成下面几段构造的数组

scheme - e.g. http
host
port
user
pass
path
query - after the question mark ?
fragment - after the hashmark #

参考资料:http://php.net/manual/en/function.parse-url.php