获取URL PHP的最后一部分 [英] Get Last Part of URL PHP

问题描述

我只是想知道如何使用PHP提取URL的最后一部分.

I'm just wondering how I can extract the last part of a URL using PHP.

示例URL是:

http://domain.com/artist/song/music-videos/song-title/9393903

现在如何使用PHP提取最终部分?

Now how can I extract the final part using PHP?

9393903

URL中始终有相同数量的变量，并且id始终在末尾.

There is always the same number of variables in the URL, and the id is always at the end.

推荐答案

您可以使用 preg_match 来匹配所需的URL部分.

You can use preg_match to match the part of the URL that you want.

在这种情况下，由于该模式很简单，因此我们正在寻找一个正斜杠(\/，并且由于正斜杠表示正则表达式模式的开始和结束，因此我们必须对其进行转义)字符串($)末尾的更多或更多数字(\d+). \d+周围的括号用于捕获我们想要的片段:即结尾.然后，将所需的结尾($end)分配给$matches[1](而不是$matches[0]，因为它与$url相同(即整个字符串)).

In this case, since the pattern is easy, we're looking for a forward slash (\/ and we have to escape it since the forward slash denotes the beginning and end of the regular expression pattern), along with one or more digits (\d+) at the very end of the string ($). The parentheses around the \d+ are used for capturing the piece that we want: namely the end. We then assign the ending that we want ($end) to $matches[1] (not $matches[0], since that is the same as $url (ie the entire string)).

$url='http://domain.com/artist/song/music-videos/song-title/9393903';

if(preg_match("/\/(\d+)$/",$url,$matches))
{
  $end=$matches[1];
}
else
{
  //Your URL didn't match.  This may or may not be a bad thing.
}

注意:您可能会或可能不想在此正则表达式中添加更多的复杂性.例如，如果您知道您的URL字符串将始终以http://开头，则正则表达式可以变为/^http:\/\/.*\/(\d+)$/(其中.*表示零个或多个字符(不是换行符) )).

Note: You may or may not want to add some more sophistication to this regular expression. For example, if you know that your URL strings will always start with http:// then the regex can become /^http:\/\/.*\/(\d+)$/ (where .* means zero or more characters (that aren't the newline character)).

这篇关于获取URL PHP的最后一部分的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！