php aes128加密

    //[加密数据]AES 128 ECB模式
    public function aesEncrypt($str){
        $screct_key = Yii::$app->params['encryptKey'];
        $str = $this->addPKCS7Padding(trim($str));
        $iv = mcrypt_create_iv(mcrypt_get_iv_size(MCRYPT_RIJNDAEL_128,MCRYPT_MODE_ECB),MCRYPT_RAND);
        $encrypt_str =  mcrypt_encrypt(MCRYPT_RIJNDAEL_128, $screct_key, $str, MCRYPT_MODE_ECB, $iv);
        return bin2hex($encrypt_str);
    }

    //[解密数据]AES 128 ECB模式
    public function aesDecrypt($str){
        $screct_key = Yii::$app->params['encryptKey'];
        //AES, 128 ECB模式加密数据
        $str=hex2bin($str);
        $iv = mcrypt_create_iv(mcrypt_get_iv_size(MCRYPT_RIJNDAEL_128,MCRYPT_MODE_ECB),MCRYPT_RAND);
        $encrypt_str =  mcrypt_decrypt(MCRYPT_RIJNDAEL_128, $screct_key, $str, MCRYPT_MODE_ECB, $iv);
        return $this->stripPKSC7Padding($encrypt_str);
    }

    //[加密数据填充算法]
    function addPKCS7Padding($source){
        $source = trim($source);
        $block = mcrypt_get_block_size('rijndael-128', 'ecb');
        $pad = $block - (strlen($source) % $block);
        if ($pad <= $block) {
            $char = chr($pad);
            $source .= str_repeat($char, $pad);
        }
        return $source;
    }

    //[解密数据移去填充算法]
    function stripPKSC7Padding($text){
      $len = strlen($text);
      $c = $text[$len-1];
      if(ord($c) <$len){
          for($i=$len-ord($c); $i<$len; $i++){
              if($text[$i] != $c){
                  return $text;
              }
          }
          return substr($text, 0, $len-ord($c));
      }
    }

 public function actionIndex()
    {
        $c='yii2 php加密算法  aes128';
        $a=$this->aesEncrypt($c);
        $b=$this->aesDecrypt($a);
        echo $a;
        echo '<br>';
        echo $b;
        echo '<br>';
}