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<?php $src = 'https://www.youtube.com/embed/lYbNbJG3-1k#'; preg_match('#(?:youtube(?:-nocookie)?\.com/(?:[^/]+/.+/|(?:v|e(?:mbed)?)/|.*[?&]v=)|youtu\.be/)([^"&?/ ]{11})#i',$src,$output); var_dump($output);
Output for git.master, git.master_jit, rfc.property-hooks
array(2) { [0]=> string(29) "youtube.com/embed/lYbNbJG3-1k" [1]=> string(11) "lYbNbJG3-1k" }

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