<?    $arr = array("a.txt","b.txt","c.txt");    foreach ($arr as $value) {        # code...        // $fh = fopen($value, "a");                if (filesize($value)<10) {            # code...            unlink($value);            echo $value."小于10字节删除";            continue;        }        $cont = file_get_contents($value);        if(stripos( $cont,"fuck")){            unlink($value);            echo $value."含有文明用语删除";            }    } ?>