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<?php $string = "<content type='application/x-shockwave-flash' src='https://www.youtube.com/v/f4LxBKN9ank?version=3&amp;f=videos&amp;app=youtube_gdata'/>"; preg_match('#\www\.youtube\.com\/v\/([\w]+)#', $string, $match); $id = $match[1]; echo $id;
Output for git.master, git.master_jit, rfc.property-hooks
f4LxBKN9ank

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