Alipay mobile payment interface_PHP tutorial-PHP Tutorial-php.cn

Alipay mobile payment interface_PHP tutorial

WBOY

Release： 2016-07-20 11:16:24

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Explanation:

One: Obtain token

To obtain the token, there are two parameters that are required

req_data and sign

The format of req_data is as follows (this is required. If you want more parameters, download the manual yourself): 　　　　

<direct_trade_create_req>
	<notify_url>{通知地址}</notify_url>
	<call_back_url>{返回地址}</call_back_url>
	<seller_account_name>{商家支付宝账号}</seller_account_name>
	<out_trade_no>{外部订单号}</out_trade_no>
	<subject>{商品介绍}</subject>
	<total_fee>{商品价格}</total_fee>
</direct_trade_create_req>

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The signature format is as follows

   
 $params = array(
            /* 基本信息 */
            'partner'           => {支付宝pid},
            'req_id'            =>  md5({网站订单号}),
            'service'           =>  'alipay.wap.trade.create.direct',
            'format'            =>  'xml',
            'v'                 =>  '2.0',   
            'sec_id'            =>  'MD5',
            "_input_charset"    => CHARSET
            "req_data"      =>  {以面的req_data}
        );
   
    if($sort){
            /* 排序 */
            ksort($params);
            reset($params);
        }
        $sign  = '';
        foreach ($params AS $key => $value)
        {
            $sign  .= "{$key}={$value}&";
        }

        md5(substr($sign, 0, -1) . {支付宝key});

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The thing to note about sign is that before sorting md5, you must follow the sorting in the manual, otherwise errors will occur

Then submit it to

via post

http://wappaygw.alipay.com/service/rest.htm?

Note that the returned data is urlencoded, so we need to use urldecode to decode and then parse the returned data

/**
	 * 解析远程模拟提交后返回的信息
		 * @param $str_text 要解析的字符串
	 * @return 解析结果
	 */
	function parseResponse($str_text) {
		//以&ldquo;&&rdquo;字符切割字符串
		$para_split = explode('&',$str_text);
		//把切割后的字符串数组变成变量与数值组合的数组
		foreach ($para_split as $item) {
			//获得第一个=字符的位置
			$nPos = strpos($item,'=');
			//获得字符串长度
			$nLen = strlen($item);
			//获得变量名
			$key = substr($item,0,$nPos);
			//获得数值
			$value = substr($item,$nPos+1,$nLen-$nPos-1);
			//放入数组中
			$para_text[$key] = $value;
		}
		
		if( ! empty ($para_text['res_data'])) {			
			//token从res_data中解析出来（也就是说res_data中已经包含token的内容）
			$doc = new DOMDocument();
			$doc->loadXML($para_text['res_data']);
			$para_text['request_token'] = $doc->getElementsByTagName( "request_token" )->item(0)->nodeValue;
		}
		
		return $para_text;
	}

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The final standardized payment form data is (get is used here)

$params = array(
            'partner'           => $this->_config['wap_alipay_partner'],
            'req_id'            =>  md5({网站订单号}),
            'service'           =>  'alipay.wap.trade.create.direct',
            'format'            =>  'xml',
            'v'                 =>  '2.0',   
            'sec_id'            =>  'MD5',
            "_input_charset"    => CHARSET
			'req_data'=>'<auth_and_execute_req><request_token>' . {token} . '</request_token></auth_and_execute_req>',
			'service'	=>	"alipay.wap.auth.authAndExecute",			
		
	);
	//这个地方也要签名的。方式和上面一样
	$params['sign']	= _get_sign($params);
	
	//get数据
	$return = array(
		'online'    =>  {联线},
		'desc'      =>  {支付说明},
		'method'    =>  'GET',
		'gateway'   =>  'http://wappaygw.alipay.com/service/rest.htm?',
		'params'    =>  $params,
	)

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Finally jump to Alipay

 <form action="<?php echo $return['gateway'];?>" id="payform" method="<?php echo $return['method'];?>" style="display:none">
<?php foreach ( $return['params'] $_k=>$value){?>
	<input type="hidden" name="<?php echo $_k;>" value="<?php echo $value;>" />
<?php }?>

</form>
<script type="text/javascript">
  document.getElementById('payform').submit();
</script>

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The one that will return tomorrow