$py = new \topinyin\ChinesePinyin;$len = count($arr);$arr || $arr = array('@roulang','maccmsbot');$num = ceil($pc * $len /100);$num || $num ='1';$kes = array_rand($arr, $num);foreach ($kes??[] as $k) {$v = trim($arr[$k]);if(empty($v) || preg_match('/[a-z0-9\s]/i', $v)|| !preg_match($reg, $v)||mb_strlen($v)>3) continue;if(in_array($v, ['\'', '\"', '`', ',', '(', ')', '%', '=', '-', '*', '^', '@', '!', '{', '}', '[', ']', ':', ';', '|', '\\', '/', '?', '<', '>', '.', ',', '，', '。','！', '《', '》', '”','“'])) continue;$s = $py->TransformWithTone($v);if(empty($s) || $s == $v) continue;$arr[$k] = $v.'('.$s.')';}