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<?php $pattern = '~(?:http|https|)(?::\/\/|)(?:www.|)(?:youtu\.be\/|youtube\.com(?:\/embed\/|\/v\/|\/watch\?v=|\/ytscreeningroom\?v=|\/feeds\/api\/videos\/|\/user\S*[^\w\-\s]|\S*[^\w\-\s]))([\w\-]{11})[a-z0-9;:@?&%=+\/\$_.-]*~i'; $youtube_url = "http://www.youtube.com/watch?v=ty9QSiVC2g0"; $youtube_id = (preg_replace($pattern, '$1', $youtube_url)); var_dump ($youtube_id);
Output for git.master, git.master_jit, rfc.property-hooks
string(11) "ty9QSiVC2g0"

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