检查网址是否包含http：//或https：//

Question

  

可能重复：
  Check if the url is contains the http or https

使用PHP和正则表达式在一开始就确定给定网址是否包含http://或https://的代码是什么？

Answer 1

您可以使用parse_url

<?php
$url = parse_url('https://example.org');

if($url['scheme'] == 'https'){
   // is https;
}
?>

Answer 2

if (substr($string, 0, 7) == "http://")
    $res = "http";

if (substr($string, 0, 8) == "https://")
    $res = "https";

Answer 3

也许这可以帮助

$_SERVER['SERVER_PROTOCOL'];