PHP:如何将尾部斜杠添加到绝对 URL [英] PHP: how to add trailing slash to absolute URL

问题描述

我有一个绝对 URL 列表.我需要确保它们都有斜杠(如适用).所以:

I have a list of absolute URLs. I need to make sure that they all have trailing slashes, as applicable. So:

• http://www.domain.com/ <-- 不需要尾部斜杠
• http://www.domain.com <-- 需要尾部斜杠
• http://www.domain.com/index.php <-- 不需要尾部斜杠
• http://www.domain.com/?message=hello <-- 不需要尾部斜线

• http://www.domain.com/ <-- does not need a trailing slash
• http://www.domain.com <-- needs a trailing slash
• http://www.domain.com/index.php <-- does not need a trailing slash
• http://www.domain.com/?message=hello <-- does not need a trailing slash

我猜我需要使用正则表达式，但匹配 URL 很痛苦.希望有更简单的解决方案.想法?

I'm guessing I need to use regex, but matching URLs are a pain. Was hoping for an easier solution. Ideas?

推荐答案

您可以使用 parse_url() 来做到这一点.例如:

Rather than doing this using regex, you could use parse_url() to do this. For example:

$url = parse_url("http://www.example.com/ab/abc.html?a=b#xyz");
if(!isset($url['path'])) $url['path'] = '/';
$surl = $url['scheme']."://".$url['host'].$url['path'].'?'.$url['query'].'#'.$url['fragment'];
echo $surl;

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