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<?php $words = ["apple", "sample", "app", "тоҷик", "отабек", "баҳодурбек"]; $letters = ['l', 's']; $res = preg_grep("/[" . implode("", $letters) . "]/", $words); var_dump($res);
Output for git.master, git.master_jit, rfc.property-hooks
array(2) { [0]=> string(5) "apple" [1]=> string(6) "sample" }

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