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在php中使用正则表达式检查字符串并在匹配时拆分

分类: 技术问答 • 2022-03-18 19:36:36

在php中使用正则表达式检查字符串并在匹配时拆分

问题描述：

I have a thousands of URL's that I need to check and explode into separate variables.

The url's I'm searching for look like this:-

http://www.mydomain.com/facebook-pages/252090964881271-smirnoff

http://www.mydomain.com/facebook-pages/3312880235580-facebook-for-every-phone

http://www.mydomain.com/facebook-pages/2449443856-candy-crush-saga

Others I want to ignore do not have numbers in them like this:-

http://www.mydomain.com/facebook-pages/media/

I need a regex pattern that can identify strings that begin with:-

http://www.mydomain.com/facebook-pages/ and ALSO contain a series of numbers (of variable length).

I then need to extract the code (the numbers) and the text after the numbers, for example:-

$pagecode = "2449443856

$pagename = "candy crush saga"

from this string http://www.mydomain.com/facebook-pages/2449443856-candy-crush-saga

I have tried all different regex strings and I'm really struggling. Can anyone help please?

Thanks

Jonathan

我需要检查数千个URL并将其分解为单独的变量。 p> \ n

我正在寻找的网址如下： - p>

http://www.mydomain.com/facebook-pages/252090964881271-smirnoff p>

http://www.mydomain.com/facebook-pages/3312880235580-facebook-for-every-phone p>

http：// www。 mydomain.com/facebook-pages/2449443856-candy-crush-saga p>

我想忽略的其他人没有像这样的数字： - p> \ n

http://www.mydomain.com/facebook-pages/media/ p>

我需要一个可以识别开始的字符串的正则表达式模式使用： - p>

http://www.mydomain.com/ facebook-pages / and还包含一系列数字（可变长度）。 p>

然后我需要提取代码（数字）和数字后的文本，例如： - p>

$ pagecode =“2449443856 p>

$ pagename =”candy crush saga“ p>

从这个字符串 http://www.mydomain.com/facebook-pages / 2449443856-candy-crush-saga p>

我尝试了所有不同的正则表达式字符串，我真的很挣扎。任何人都可以帮忙吗？ p>

谢谢 p>

Jonathan p> div>

答

Try this,

$str = 'http://www.mydomain.com/facebook-pages/2449443856-candy-crush-saga';
if (preg_match('/^http:\/\/www.mydomain.com\/facebook-pages\/([0-9]+)-(.*?)$/si', $str, $match)) {
  $page_no = $match[1];
  $page_name = $match[2];
}

答

$string = 'http://www.mydomain.com/facebook-pages/2449443856-candy-crush-saga';

if (preg_match('@^http://www.mydomain.com/facebook-pages/([0-9]+)-(.+)$@', $string, $matches)) {
    $pagecode = $matches[1];
    $pagename = $matches[2];
}