PHP 实现微信扫码支付的方式

<span style="font-size: 14px;">/**<br/> * 微信支付请求接口(POST)<br/> * @param string $goods_id   商品ID<br/> * @param string $body       商品简单描述<br/> * @param string $order_sn  订单编号<br/> * @param string $total_fee 金额<br/> * @return  json的数据<br/> */<br/>public function wxpay($goods_id,$total_fee,$body,$order_sn){<br/>    $config = $this->config;<br/>  <br/> //统一下单参数构造<br/>   $unifiedorder = array(<br/>       &#39;APPid&#39;         => $config[&#39;appid&#39;],<br/>      &#39;mch_id&#39;        => $config[&#39;mch_id&#39;],<br/>     &#39;device_info&#39;   => &#39;WEB&#39;,<br/>     &#39;nonce_str&#39;     => self::getNonceStr(),<br/>       &#39;body&#39;          => $body,<br/>     &#39;out_trade_no&#39;  => $order_sn,<br/>     &#39;total_fee&#39;     => $total_fee * 100,<br/>      &#39;spbill_create_ip&#39;  => self::getip(),<br/>     &#39;notify_url&#39;    => &#39;http://&#39;.$_SERVER[&#39;HTTP_HOST&#39;].&#39;/notify.php&#39;,<br/>     &#39;trade_type&#39;    => &#39;NATIVE&#39;,<br/>      &#39;product_id&#39;    => $goods_id<br/>  );<br/>   $unifiedorder[&#39;sign&#39;] = self::makeSign($unifiedorder);<br/>   <br/> //return $unifiedorder;<br/>  <br/> //请求数据,统一下单<br/>  $xmldata = self::array2xml($unifiedorder);<br/>   $url = &#39;https://api.mch.weixin.qq.com/pay/unifiedorder&#39;;<br/> $res = self::curl_post_ssl($url, $xmldata);<br/>  if(!$res){<br/>       return array(&#39;status&#39;=>0, &#39;msg&#39;=>"Can&#39;t connect the server" );<br/> }<br/>    // 这句file_put_contents是用来查看服务器返回的结果 测试完可以删除了<br/> file_put_contents(&#39;./log.txt&#39;,$res,FILE_APPEND);<br/> <br/> $content = self::xml2array($res);<br/>    if(strval($content[&#39;result_code&#39;]) == &#39;FAIL&#39;){<br/>       return array(&#39;status&#39;=>0, &#39;msg&#39;=>strval($content[&#39;err_code&#39;]).&#39;:&#39;.strval($content[&#39;err_code_des&#39;]));<br/>   }<br/>    if(strval($content[&#39;return_code&#39;]) == &#39;FAIL&#39;){<br/>       return array(&#39;status&#39;=>0, &#39;msg&#39;=>strval($content[&#39;return_msg&#39;]));<br/>  }<br/>    <br/> return $content;<br/>}<br/><br/>/**<br/> * 微信退款(POST)<br/> * @param string(28) $transaction_id    在微信支付的时候,微信服务器生成的订单流水号,在支付通知中有返回<br/> * @param string $out_refund_no      商品简单描述<br/> * @param string $total_fee            微信支付的时候支付的总金额(单位:分)<br/> * @param string $refund_fee          此次要退款金额(单位:分)<br/> * @return string                       xml格式的数据<br/> */<br/>public function refund($transaction_id,$out_refund_no,$total_fee,$refund_fee){<br/>  $config = $this->config;<br/>  <br/> //退款参数<br/>   $refundorder = array(<br/>        &#39;appid&#39;         => $config[&#39;appid&#39;],<br/>      &#39;mch_id&#39;        => $config[&#39;mch_id&#39;],<br/>     &#39;nonce_str&#39;     => self::getNonceStr(),<br/>       &#39;transaction_id&#39;=> $transaction_id,<br/>       &#39;out_refund_no&#39; => $out_refund_no,<br/>        &#39;total_fee&#39;     => $total_fee * 100,<br/>      &#39;refund_fee&#39;    => $refund_fee * 100<br/>  );<br/>   $refundorder[&#39;sign&#39;] = self::makeSign($refundorder);<br/> <br/> //请求数据,进行退款<br/>  $xmldata = self::array2xml($refundorder);<br/>    $url = &#39;https://api.mch.weixin.qq.com/secapi/pay/refund&#39;;<br/>    $res = self::curl_post_ssl($url, $xmldata);<br/>  if(!$res){<br/>       return array(&#39;status&#39;=>0, &#39;msg&#39;=>"Can&#39;t connect the server" );<br/> }<br/>    // 这句file_put_contents是用来查看服务器返回的结果 测试完可以删除了<br/> //file_put_contents(&#39;./log3.txt&#39;,$res,FILE_APPEND);<br/>  <br/> $content = self::xml2array($res);<br/>    if(strval($content[&#39;result_code&#39;]) == &#39;FAIL&#39;){<br/>       return array(&#39;status&#39;=>0, &#39;msg&#39;=>strval($content[&#39;err_code&#39;]).&#39;:&#39;.strval($content[&#39;err_code_des&#39;]));<br/>   }<br/>    if(strval($content[&#39;return_code&#39;]) == &#39;FAIL&#39;){<br/>       return array(&#39;status&#39;=>0, &#39;msg&#39;=>strval($content[&#39;return_msg&#39;]));<br/>  }<br/>    <br/> return $content;<br/>}<br/></span>

<span style="font-size: 14px;">require_once "webwxpay.class.php";<br/><br/>$config = array(<br/>    &#39;appid&#39;         => &#39;wx123456789876&#39;,<br/>  &#39;mch_id&#39;        => &#39;123456789&#39;,<br/>   &#39;pay_apikey&#39;    => &#39;123456789876123456789876123456789876&#39;<br/>);<br/><br/>$wxpay = new WxPay($config);<br/>$result = $wxpay->paytest();<br/>//print_r($result);<br/>scerweima($result[&#39;code_url&#39;]);       //生成的支付二维码,用户可以扫码付款<br/></span>