hxtc-order/addons/qingdongams/library/wework/SHA1.php

<?php

namespace WeWork;

/**
 * SHA1 class
 *
 * 计算公众平台的消息签名接口.
 */
class SHA1
{
    /**
     * 用SHA1算法生成安全签名
     *
     * @param string $token       票据
     * @param string $timestamp   时间戳
     * @param string $nonce       随机字符串
     * @param string $encrypt_msg 密文消息
     *
     * @return array
     */
    public function getSHA1($token, $timestamp, $nonce, $encrypt_msg)
    {
        //排序
        try {
            $array = array($encrypt_msg, $token, $timestamp, $nonce);
            sort($array, SORT_STRING);
            $str = implode($array);
            return array(ErrorCode::$OK, sha1($str));
        } catch (\Exception $e) {
            print $e . "\n";
            return array(ErrorCode::$ComputeSignatureError, null);
        }
    }

}