php對應java的AES/ECB/PKCS5Padding加密方法，通過bin2hex輸出

<?php

namespace Common\Help;
class AesHelper
{
    /**
     * @param $key
     * @param $data
     * @return string
     * @author lf 2020/7/6
     */
    public static function encrypt($key, $data)
    {
        $size = mcrypt_get_block_size(MCRYPT_RIJNDAEL_128, MCRYPT_MODE_ECB);
        $input = self::pkcs5Pad($data, $size);
        $td = mcrypt_module_open(MCRYPT_RIJNDAEL_128, '', MCRYPT_MODE_ECB, '');
        $iv = '0102030405060708';
        mcrypt_generic_init($td, $key, $iv);
        $data = mcrypt_generic($td, $input);
        mcrypt_generic_deinit($td);
        mcrypt_module_close($td);
        $data = bin2hex($data);
        return $data;
    }

    /**
     * @param $text
     * @param $blocksize
     * @return string
     * @author lf 2020/7/6
     */
    public static function pkcs5Pad($text, $blocksize)
    {
        $pad = $blocksize - (strlen($text) % $blocksize);
        return $text . str_repeat(chr($pad), $pad);
    }

    /**
     * @param $key
     * @param $data
     * @return false|string
     * @author lf 2020/7/6
     */
    public static function decrypt($key, $data)
    {
        $iv = '0102030405060708';
        $decrypted = mcrypt_decrypt(MCRYPT_RIJNDAEL_128, $key, hex2bin($data), MCRYPT_MODE_ECB, $iv);
        $dec_s = strlen($decrypted);
        $padding = ord($decrypted[$dec_s - 1]);
        $decrypted = substr($decrypted, 0, -$padding);
        return $decrypted;
    }
}

可根據需求自行把hex2bin改成base64_decode