PHP 函数 strtr$trans = array('1'=>'a', '2'=>'b', '3'=>'c', '4'=>'d', '5'=>'e', '6'=>'f', '7'=>'g', '8'=>'h', '9'=>'i', '0'=>'z');$url = 'aa.com/ct-9326664726.html';echo strtr($url, $trans);// 输出 aa.com/ct-icbfffdgbf.html
base64_encode()函数加密