php支付宝系列之电脑网站支付(2)

protected function sign($data,$signType = "RSA") {
$priKey=$this->rsaPrivateKey;
$res = "-----BEGIN RSA PRIVATE KEY-----\n" .
wordwrap($priKey,64,"\n",true) .
"\n-----END RSA PRIVATE KEY-----";

($res) or die('您使用的私钥格式错误，请检查RSA私钥配置');
if ("RSA2" == $signType) {
  openssl_sign($data,$sign,$res,version_compare(PHP_VERSION,'5.4.0','<') ? SHA256 : OPENSSL_ALGO_SHA256); //OPENSSL_ALGO_SHA256是php5.4.8以上版本才支持
} else {
  openssl_sign($data,$res);
}
$sign = base64_encode($sign);
return $sign;

}

/**

• 校验$value是否非空
• if not set,return true;
• if is null,return true;
  **/
  protected function checkEmpty($value) {
  if (!isset($value))
  return true;
  if ($value === null)
  return true;
  if (trim($value) === "")
  return true;

return false;

}

public function getSignContent($params) {
ksort($params);
$stringToBeSigned = "";
$i = 0;
foreach ($params as $k => $v) {
if (false === $this->checkEmpty($v) && "@" != substr($v,1)) {
// 转换成目标字符集
$v = $this->characet($v,$this->charset);
if ($i == 0) {
$stringToBeSigned .= "$k" . "=" . "$v";
} else {
$stringToBeSigned .= "&" . "$k" . "=" . "$v";
}
$i++;
}
}

unset ($k,$v);
return $stringToBeSigned;

}

/**

• 转换字符集编码
• @param $data
• @param $targetCharset
• @return string
  */
  function characet($data,$targetCharset) {
  if (!empty($data)) {
  $fileType = $this->charset;
  if (strcasecmp($fileType,$targetCharset) != 0) {
  $data = mb_convert_encoding($data,$targetCharset,$fileType);
  //$data = iconv($fileType,$targetCharset.'//IGNORE',$data);
  }
  }
  return $data;
  }
  }

  以上就是本文的全部内容，希望对大家的学习有所帮助，也希望大家多多支持编程之家。

（编辑：ASP站长网）