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<?php $s = '<iframe ><embed boowidth=222>fdgwidth=700dfg</embed>sfsdfsdf</iframe>'; $matches = array(); var_dump( preg_match('~<[^>]+\swidth=["\']?(\d+)["\']?[^>]*>~', $s, $matshes) ); var_dump($matshes);
Output for git.master, git.master_jit, rfc.property-hooks
int(0) array(0) { }

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