Whether it’s a big carousel or a scratch card or lottery, you can use the same method to calculate the probability of winning and control the amount of the prize pool. This article shares with you the PHP WeChat scratch card example code, PHP WeChat scratch card + Interface, which can be called directly, and comes with a WeChat interface for everyone to learn.
Rendering:
prize.php
<?php $rand = rand(1,100); if($rand<10){ $prize = '苹果1个'; }else if($rand<30){ $prize = '苹果2个'; }else if($rand<60){ $prize = '苹果3个'; }else{ $prize = '谢谢参与'; } ?> <!DOCTYPE html> <html> <head> <meta http-equiv="Content-Type" content="text/html; charset=UTF-8"> <meta name="viewport" content="width=device-width,height=device-height,inital-scale=1.0,maximum-scale=1.0,user-scalable=no;"> <meta name="apple-mobile-web-app-capable" content="yes"> <meta name="apple-mobile-web-app-status-bar-style" content="black"> <meta name="format-detection" content="telephone=no"> <title>刮刮卡</title> <link href="index/activity-style.css" rel="stylesheet" type="text/css"> </head> </head> <body data-role="page" class="activity-scratch-card-winning"> <script src="index/jquery.js" type="text/javascript"></script> <script src="index/wScratchPad.js" type="text/javascript"></script> <div class="main"> <div class="cover"> <img src="/static/imghwm/default1.png" data-src="index/activity-scratch-card-bannerbg.png" class="lazy" alt="PHP WeChat scratch card with WeChat interface_php example" > <div id="prize"><?php echo $prize;?></div> <div id="scratchpad"></div> </div> <div class="boxcontent boxwhite"> <div class="box"> <div class="title-brown"> <span> 奖项设置: </span> </div> <div class="Detail"> <p> 一等奖: iphone 5S 奖品数量:60 </p> <p> 二等奖: ipad mini2 奖品数量:100 </p> <p> 三等奖: 金士顿16G手机卡 奖品数量:2000 </p> </div> </div> </div> <div class="boxcontent boxwhite"> <div class="box"> <div class="title-brown"> 活动说明: </div> <div class="Detail"> <p class="red"> 中奖用户请准确将收货地址发送给我,我们将以货到付款的方式邮寄给你! </p> <p> 亲,祝您好运哦!<a href="http://2311156115.44c.pw/prize.php">再来一次</a> </p> </div> </div> </div> </div> <div style="clear:both;"> </div> </div> <script type="text/javascript"> window.sncode = "null"; $(function() { $("#scratchpad").wScratchPad({ width: 150, height: 40, color: "#a9a9a7", }); }); </script> </body> </html>
sxxybbs_wx.php
<?php /** * wechat php test */ //define your token define("TOKEN", "wwwsxxybbscom"); $wechatObj = new wechatCallbackapiTest(); //$wechatObj->valid(); $wechatObj->responseMsg(); class wechatCallbackapiTest { public function valid() { $echoStr = $_GET["echostr"]; //valid signature , option if($this->checkSignature()){ echo $echoStr; exit; } } public function responseMsg() { //get post data, May be due to the different environments $postStr = $GLOBALS["HTTP_RAW_POST_DATA"]; //extract post data if (!empty($postStr)){ $postObj = simplexml_load_string($postStr, 'SimpleXMLElement', LIBXML_NOCDATA); $fromUsername = $postObj->FromUserName; $toUsername = $postObj->ToUserName; $time = time(); if($postObj->Content == '1'){ $textTpl = "<xml> <ToUserName><![CDATA[%s]]></ToUserName> <FromUserName><![CDATA[%s]]></FromUserName> <CreateTime>%s</CreateTime> <MsgType><![CDATA[%s]]></MsgType> <Content><![CDATA[%s]]></Content> <FuncFlag>0</FuncFlag> </xml>"; $msgType = 'text'; $contentStr = "你输入了:1"; $resultStr = sprintf($textTpl, $fromUsername, $toUsername, $time, $msgType, $contentStr); echo $resultStr; }else if($postObj->Content == '抽奖'){ $newsTpl ="<xml> <ToUserName><![CDATA[%s]]></ToUserName> <FromUserName><![CDATA[%s]]></FromUserName> <CreateTime>%s</CreateTime> <MsgType><![CDATA[news]]></MsgType> <ArticleCount>1</ArticleCount> <Articles> <item> <Title><![CDATA[刮刮乐翻天]]></Title> <Description><![CDATA[我就要去刮刮乐,抽奖去!]]></Description> <PicUrl><![CDATA[http://special.sxcq.cn/cj/weixin/ggk/ggk.jpg]]></PicUrl> <Url><![CDATA[%s]]></Url> </item> </Articles> <FuncFlag>0</FuncFlag> </xml>"; $url="http://2311156115.44c.pw/prize.php"; $resultStr = sprintf($newsTpl, $fromUsername, $toUsername, $time,$url); echo $resultStr; }else{ $keyword = trim($postObj->Content); $textTpl = "<xml> <ToUserName><![CDATA[%s]]></ToUserName> <FromUserName><![CDATA[%s]]></FromUserName> <CreateTime>%s</CreateTime> <MsgType><![CDATA[%s]]></MsgType> <Content><![CDATA[%s]]></Content> <FuncFlag>0</FuncFlag> </xml>"; if(!empty( $keyword )) { $msgType = "text"; $contentStr = "请输入:'1‘或者‘抽奖'"; $resultStr = sprintf($textTpl, $fromUsername, $toUsername, $time, $msgType, $contentStr); echo $resultStr; }else{ $msgType = "text"; $contentStr = "谢谢你关注sxxybbs博客,后续有精彩的内容会第一时间发送给您!回复:'1‘或者‘抽奖'得到对应的服务"; $resultStr = sprintf($textTpl, $fromUsername, $toUsername, $time, $msgType, $contentStr); echo $resultStr; } } }else { echo ""; exit; } } private function checkSignature() { $signature = $_GET["signature"]; $timestamp = $_GET["timestamp"]; $nonce = $_GET["nonce"]; $token = TOKEN; $tmpArr = array($token, $timestamp, $nonce); sort($tmpArr); $tmpStr = implode( $tmpArr ); $tmpStr = sha1( $tmpStr ); if( $tmpStr == $signature ){ return true; }else{ return false; } } } ?>
Source code download: scratch card
The above is the entire content of this article. I hope it will be helpful to everyone’s study. I also hope that everyone will support Script Home.

PHP is used to build dynamic websites, and its core functions include: 1. Generate dynamic content and generate web pages in real time by connecting with the database; 2. Process user interaction and form submissions, verify inputs and respond to operations; 3. Manage sessions and user authentication to provide a personalized experience; 4. Optimize performance and follow best practices to improve website efficiency and security.

PHP uses MySQLi and PDO extensions to interact in database operations and server-side logic processing, and processes server-side logic through functions such as session management. 1) Use MySQLi or PDO to connect to the database and execute SQL queries. 2) Handle HTTP requests and user status through session management and other functions. 3) Use transactions to ensure the atomicity of database operations. 4) Prevent SQL injection, use exception handling and closing connections for debugging. 5) Optimize performance through indexing and cache, write highly readable code and perform error handling.

Using preprocessing statements and PDO in PHP can effectively prevent SQL injection attacks. 1) Use PDO to connect to the database and set the error mode. 2) Create preprocessing statements through the prepare method and pass data using placeholders and execute methods. 3) Process query results and ensure the security and performance of the code.

PHP and Python have their own advantages and disadvantages, and the choice depends on project needs and personal preferences. 1.PHP is suitable for rapid development and maintenance of large-scale web applications. 2. Python dominates the field of data science and machine learning.

PHP is widely used in e-commerce, content management systems and API development. 1) E-commerce: used for shopping cart function and payment processing. 2) Content management system: used for dynamic content generation and user management. 3) API development: used for RESTful API development and API security. Through performance optimization and best practices, the efficiency and maintainability of PHP applications are improved.

PHP makes it easy to create interactive web content. 1) Dynamically generate content by embedding HTML and display it in real time based on user input or database data. 2) Process form submission and generate dynamic output to ensure that htmlspecialchars is used to prevent XSS. 3) Use MySQL to create a user registration system, and use password_hash and preprocessing statements to enhance security. Mastering these techniques will improve the efficiency of web development.

PHP and Python each have their own advantages, and choose according to project requirements. 1.PHP is suitable for web development, especially for rapid development and maintenance of websites. 2. Python is suitable for data science, machine learning and artificial intelligence, with concise syntax and suitable for beginners.

PHP is still dynamic and still occupies an important position in the field of modern programming. 1) PHP's simplicity and powerful community support make it widely used in web development; 2) Its flexibility and stability make it outstanding in handling web forms, database operations and file processing; 3) PHP is constantly evolving and optimizing, suitable for beginners and experienced developers.


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