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<?php $str = "WHERE 1=1 AND ( ( wp_usermeta.meta_key = 'mayo_location' AND wp_usermeta.meta_value IN ('418') ) ) AND (user_login LIKE '%a j sterr%' OR user_email LIKE '%a j sterr%')"; preg_match_all('/sterr/', $str, $matches, PREG_SET_ORDER); print_r(end($matches));
Output for git.master, git.master_jit, rfc.property-hooks
Array ( [0] => sterr )

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