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<?php $words = "systematic,gemar,synthesis,mysterious"; $words=explode(",",$words); $your_array = preg_grep('~(?=[^s]*s)(?=[^m]*m)(?=[^e]*e)~', $words);; print_r($your_array);
Output for git.master, git.master_jit, rfc.property-hooks
Array ( [0] => systematic [3] => mysterious )

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