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<?php $s = 'width=222<iframe >width=222<embed boo width=222>fdgwidth=700dfg</embed>sfsdfsdf</iframe>'; $matches = array(); var_dump( preg_replace('~(.*<[^>]+\swidth=["\']?)(\d+)(["\']?[^>]*>.*)~', '${1}---${3}', $s) );
Output for git.master, git.master_jit, rfc.property-hooks
string(88) "width=222<iframe >width=222<embed boo width=--->fdgwidth=700dfg</embed>sfsdfsdf</iframe>"

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