Problem useing regular expressions in php for finding all urls in a string

Question

I'm trying to get all urls from this string:

2014 urmymuse Licensed to the public under http://creativecommons.org/licenses/by/3.0/ Verify at http://ccmixter.org/files/urmymuse/47486

I tried with:

$url_str = ""; $matches = preg_match_all('#\bhttps?://[^,\s()<>]+(?:\([\w\d]+\)|([^,[:punct:]\s]|/))#i', $str, $urls); if ($matches) { foreach ($urls as $url) { $urls_str = $urls_str . ' ' . $url[0]; } }

But outcome is: " http://creativecommons.org/licenses/by/3.0/ /" instead of the awaited two urls. What I'm doing wrong?

You already got both matches, you're just not processing them correctly. 3v4l.org/JoLFD — C3roe
– C3roe, Commented Apr 29, 2024 at 7:01
Does this answer your question? Extract URL's from a string using PHP — rand'Chris
– rand'Chris, Commented Apr 30, 2024 at 16:30

Perfect · Accepted Answer · 2024-04-29 07:25:54Z

The issue with your regex is that it's capturing both the URL and the following slash character.

try to use this:

$matches = preg_match_all('#\bhttps?://\S+#i', $str, $urls);

instead of:

$matches = preg_match_all('#\bhttps?://[^,\s()<>]+(?:\([\w\d]+\)|([^,[:punct:]\s]|/))#i', $str, $urls);

This should correctly extract both URLs from the provided string.

$str = "2014 urmymuse Licensed to the public under http://creativecommons.org/licenses/by/3.0/ Verify at http://ccmixter.org/files/urmymuse/47486"; $url_str = ""; $matches = preg_match_all('#\bhttps?://\S+#i', $str, $urls); print_r($urls); if ($matches) { foreach ($urls as $url) { $urls_str = $url_str . ' ' . $url[0]; } }

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