給APP提供支付寶支付簽名PHP程式碼
//$no 是訂單編號 $price 是價格
function ali_pay($no, $price){
$data['subject'] = '訂單'.$no;
$data['out_trade_no'] = 訂單號;
$data['total_amount'] = 價格;
$data['product_code'] = 'QUICK_MSECURITY_PAY';
$data = json_encode($data);
$params['app_id'] = "app_id";
$params['method'] = 'alipay.trade.app.pay';
$params['sign_type'] = 'RSA2';
$params['timestamp'] = date("Y-m-d H:i:s");
$params['charset'] = 'UTF-8';
$params['version'] = '1.0';
$params['notify_url'] = "支付成功回撥地址";
$params['biz_content'] = $data;
ksort($params); //對將要簽名的陣列排序
$string = toUrlParam($params); //將陣列轉換成字串
$params['sign'] = alipay_sign($string); //將字串簽名
$params = http_build_query($params);
return $params;
}
//app支付寶簽名
function alipay_sign($data, $signType = "RSA2") {
$priKey = '支付商戶後臺應用私鑰';
$res = "-----BEGIN RSA PRIVATE KEY-----\n" .
wordwrap($priKey, 64, "\n", true) .
"\n-----END RSA PRIVATE KEY-----";
($res) or die('您使用的私鑰格式錯誤,請檢查RSA私鑰配置');
if ("RSA2" == $signType) {
openssl_sign($data, $sign, $res, OPENSSL_ALGO_SHA256);
} else {
openssl_sign($data, $sign, $res);
}
$sign = base64_encode($sign);
return $sign;
}
/*
* 格式化引數格式化成url引數
*/
function toUrlParam($param)
{
$buff = "";
foreach($param as $k => $v)
{
if($k != "sign" && $v != "" && !is_array($v)){
$buff .= $k."=".$v."&";
}
}
$buff = trim($buff, "&");
return $buff;
}