这篇文章主要为大家详细介绍了php实现微信原生支付，扫码支付功能，具有一定的参考价值，感兴趣的小伙伴们可以参考一下
网上的很多php微信扫码支付接入教程都颇为复杂，且需要配置和引入较多的文件，本人通过整理后给出一个单文件版的，只有200行代码，希望可以给各位想接入微信扫码支付的带来些许帮助和借鉴意义。
直接运行该文件即可得到一个支付二维码的图片。
需要注意的事项：
1.该文件需放到支付授权目录下，可以在微信支付商户平台->产品中心->开发配置中设置。
2.如提示签名错误可以通过微信支付签名验证工具进行验证：微信公众平台支付接口调试工具
代码如下：
<?php
header('content-type:text/html; charset=utf-8');
$mchid = 'xxxxx'; //微信支付商户号 partnerid 通过微信支付商户资料审核后邮件发送
$appid = 'xxxxx'; //公众号appid 通过微信支付商户资料审核后邮件发送
$apikey = 'xxxxx'; //https://pay.weixin.qq.com 帐户设置-安全设置-api安全-api密钥-设置api密钥
$wxpay = new wxpayservice($mchid,$appid,$apikey);
$outtradeno = uniqid(); //你自己的商品订单号
$payamount = 0.01; //付款金额，单位:元
$ordername = '支付测试'; //订单标题
$notifyurl = 'https://www.xxx.com/wx/'; //付款成功后的回调地址(不要有问号)
$paytime = time(); //付款时间
$arr = $wxpay->createjsbizpackage($payamount,$outtradeno,$ordername,$notifyurl,$paytime);
//生成二维码
$url = 'http://qr.liantu.com/api.php?text='.$arr['code_url'];
echo "<img src='{$url}' style='width:300px;'>";
class wxpayservice
{
protected $mchid;
protected $appid;
protected $apikey;
public function __construct($mchid, $appid, $key)
{
$this->mchid = $mchid;
$this->appid = $appid;
$this->apikey = $key;
}
/**
* 发起订单
* @param float $totalfee 收款总费用 单位元
* @param string $outtradeno 唯一的订单号
* @param string $ordername 订单名称
* @param string $notifyurl 支付结果通知url 不要有问号
* @param string $timestamp 订单发起时间
* @return array
*/
public function createjsbizpackage($totalfee, $outtradeno, $ordername, $notifyurl, $timestamp)
{
$config = array(
'mch_id' => $this->mchid,
'appid' => $this->appid,
'key' => $this->apikey,
);
$ordername = iconv('gbk','utf-8',$ordername);
$unified = array(
'appid' => $config['appid'],
'attach' => 'pay', //商家数据包，原样返回，如果填写中文，请注意转换为utf-8
'body' => $ordername,
'mch_id' => $config['mch_id'],
'nonce_str' => self::createnoncestr(),
'notify_url' => $notifyurl,
'out_trade_no' => $outtradeno,
'spbill_create_ip' => '127.0.0.1',
'total_fee' => intval($totalfee * 100), //单位 转为分
'trade_type' => 'native',
);
$unified['sign'] = self::getsign($unified, $config['key']);
$responsexml = self::curlpost('https://api.mch.weixin.qq.com/pay/unifiedorder', self::arraytoxml($unified));
$unifiedorder = simplexml_load_string($responsexml, 'simplexmlelement', libxml_nocdata);
if ($unifiedorder === false) {
die('parse xml error');
}
if ($unifiedorder->return_code != 'success') {
die($unifiedorder->return_msg);
}
if ($unifiedorder->result_code != 'success') {
die($unifiedorder->err_code);
}
$codeurl = (array)($unifiedorder->code_url);
if(!$codeurl[0]) exit('get code_url error');
$arr = array(
"appid" => $config['appid'],
"timestamp" => $timestamp,
"noncestr" => self::createnoncestr(),
"package" => "prepay_id=" . $unifiedorder->prepay_id,
"signtype" => 'md5',
"code_url" => $codeurl[0],
);
$arr['paysign'] = self::getsign($arr, $config['key']);
return $arr;
}
public function notify()
{
$config = array(
'mch_id' => $this->mchid,
'appid' => $this->appid,
'key' => $this->apikey,
);
$poststr = $globals["http_raw_post_data"];
$postobj = simplexml_load_string($poststr, 'simplexmlelement', libxml_nocdata);
if ($postobj === false) {
die('parse xml error');
}
if ($postobj->return_code != 'success') {
die($postobj->return_msg);
}
if ($postobj->result_code != 'success') {
die($postobj->err_code);
}
$arr = (array)$postobj;
unset($arr['sign']);
if (self::getsign($arr, $config['key']) == $postobj->sign) {
echo '<xml><return_code><![cdata[success]]></return_code><return_msg><![cdata[ok]]></return_msg></xml>';
return $postobj;
}
}
/**
* curl get
*
* @param string $url
* @param array $options
* @return mixed
*/
public static function curlget($url = '', $options = array())
{
$ch = curl_init($url);
curl_setopt($ch, curlopt_returntransfer, 1);
curl_setopt($ch, curlopt_timeout, 30);
if (!empty($options)) {
curl_setopt_array($ch, $options);
}
//https请求 不验证证书和host
curl_setopt($ch, curlopt_ssl_verifypeer, false);
curl_setopt($ch, curlopt_ssl_verifyhost, false);
$data = curl_exec($ch);
curl_close($ch);
return $data;
}
public static function curlpost($url = '', $postdata = '', $options = array())
{
if (is_array($postdata)) {
$postdata = http_build_query($postdata);
}
$ch = curl_init();
curl_setopt($ch, curlopt_url, $url);
curl_setopt($ch, curlopt_returntransfer, 1);
curl_setopt($ch, curlopt_post, 1);
curl_setopt($ch, curlopt_postfields, $postdata);
curl_setopt($ch, curlopt_timeout, 30); //设置curl允许执行的最长秒数
if (!empty($options)) {
curl_setopt_array($ch, $options);
}
//https请求 不验证证书和host
curl_setopt($ch, curlopt_ssl_verifypeer, false);
curl_setopt($ch, curlopt_ssl_verifyhost, false);
$data = curl_exec($ch);
curl_close($ch);
return $data;
}
public static function createnoncestr($length = 16)
{
$chars = 'abcdefghijklmnopqrstuvwxyzabcdefghijklmnopqrstuvwxyz0123456789';
$str = '';
for ($i = 0; $i < $length; $i++) {
$str .= substr($chars, mt_rand(0, strlen($chars) - 1), 1);
}
return $str;
}
public static function arraytoxml($arr)
{
$xml = "<xml>";
foreach ($arr as $key => $val) {
if (is_numeric($val)) {
$xml .= "<" . $key . ">" . $val . "</" . $key . ">";
} else
$xml .= "<" . $key . "><![cdata[" . $val . "]]></" . $key . ">";
}
$xml .= "</xml>";
return $xml;
}
/**
* 获取签名
*/
public static function getsign($params, $key)
{
ksort($params, sort_string);
$unsignparastring = self::formatqueryparamap($params, false);
$signstr = strtoupper(md5($unsignparastring . "&key=" . $key));
return $signstr;
}
protected static function formatqueryparamap($paramap, $urlencode = false)
{
$buff = "";
ksort($paramap);
foreach ($paramap as $k => $v) {
if (null != $v && "null" != $v) {
if ($urlencode) {
$v = urlencode($v);
}
$buff .= $k . "=" . $v . "&";
}
}
$reqpar = '';
if (strlen($buff) > 0) {
$reqpar = substr($buff, 0, strlen($buff) - 1);
}
return $reqpar;
}
}
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以上就是php实现微信原生支付（扫码支付）功能的详细内容。