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<?php $addr = "http://www.example.com/?pk_lol=VAgin&utm_campaign=printemps&utm_medium=e-mail&utm_source=newsletter1&utm_content=lien-en-haut"; $pattern ="(utm_medium=.[^&]+)/i"; preg_match($pattern, $addr, $result); print_r($result);
Output for git.master, git.master_jit, rfc.property-hooks
Warning: preg_match(): Unknown modifier '/' in /in/d2Q8S on line 7

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