php7.0で暗号化する方法 openssl_encrypt

<?php
     $privateKey = "qewrvxffbfdhsfdgh";
     $iv    = "234253454354352";
     $data  = "测试用的数据";
     $encrypted = mcrypt_encrypt(MCRYPT_RIJNDAEL_128, $privateKey, $data, MCRYPT_MODE_CBC, $iv);
     echo(base64_encode($encrypted));
     echo "\n";
 >

<?php
     $privateKey = "qewrvxffbfdhsfdgh";
     $iv    = "234253454354352";
     $data  = "测试用的数据";
     $encrypted=  openssl_encrypt($data,&#39;aes-128-cbc&#39;, $privateKey, OPENSSL_RAW_DATA, $iv);
	 echo(base64_encode($encrypted));
     echo "\n";
 >

<?php
     $privateKey = "qewrvxffbfdhsfdgh";
     $iv    = "234253454354352";
     $data  = "测试用的数据";
		if (strlen($data) % 16) {
		            $data = str_pad($data,strlen($data) + 16 - strlen($data) % 16, "\0");
		        }
		 $encrypted=  openssl_encrypt($data, &#39;AES-128-CBC&#39;,$privateKey,OPENSSL_NO_PADDING,$iv);
     echo  (base64_encode($encrypted));