


Use the Appcan client to automatically update the PHP version number (full)_php example
During the project development process, I encountered automatic updates on the app side. I consulted relevant information and sorted out the method for the Appcan client to automatically update the PHP version number. The specific code is explained below.
Server files: update.php, version.php, version.xml
update.php content:
PHP
<?php define('CIN', true); $oldver = $_REQUEST['ver'];//客户端传过来的版本号 $platform = $_REQUEST['platform'];//客户端的平台 $info = simplexml_load_file('version.xml'); $iphone_filename=$info->news['iphone_filename']; //iphone下载文件 $android_filename=$info->news['android_filename']; //androiad下载文件 $version=$info->news['version']; //版本号 if ($version>$oldver) { switch ($platform) { case "0"://iphone echo "<?xml version=\"1.0\" encoding=\"utf-8\"?>"; echo "<results>"; echo "<updateFileName>i2ty</updateFileName>";//客户端名字 echo "<updateFileUrl>itunesURL</updateFileUrl>";//返回给客户端的下载地址 echo "<fileSize>0</fileSize>";//文件大小 echo "<version>".$version."</version>";//版本信息 echo "</results>"; break; case "1"://android echo "<?xml version=\"1.0\" encoding=\"utf-8\"?>"; echo "<results>"; echo "<updateFileName>i2ty</updateFileName>";//客户端名字 echo "<updateFileUrl>http://i2ty.com/app/".$android_filename."</updateFileUrl>";//返回给客户端的下载地址 echo "<fileSize>0</fileSize>";//文件大小 echo "<version>".$version."</version>";//版本信息 echo "</results>"; break; } } ?>
version.php content:
PHP
<?php define('CIN', true); $result['vtitle']="更新"; $result['vcontent']="新版本有更新喔!~新增功能修复各种错误"; print_r(json_encode($result)); ?> version.xml 内容: PHP <?xml version="1.0" encoding="utf-8" ?> <root desc="Login"> <news version="00.00.0001" iphone_filename="i2ty.ipa" android_filename="i2ty.apk" /> </root> index.html 客户端: PHP window.uexOnload = function(type){ if (!type) { update(); } var flag_sdcard = 1; var updateurl = '';//下载新apk文件地址 var filepath2 = "/sdcard/";//保存到sd卡 var fileName = '';//新版本文件名 var platform = '';//平台版本 function update() { //安卓版 ,显示下载进度 (step:7) uexDownloaderMgr.onStatus = function(opId, fileSize, percent, status) { if (status == 0) { // 下载中... Log('download percent ' + percent + '%'); uexWindow.toast('1', '5', '正在下载'+localStorage.app_title+'新版,请稍后。进度:' + percent + '%', ''); } else if (status == 1) {// 下载完成. uexWindow.closeToast(); uexDownloaderMgr.closeDownloader('14');//关闭下载对象 uexWidget.installApp(filepath2+fileName);// 安装下载apk文件 } else { uexWindow.toast('1', '5', '下载出错,请关闭'+localStorage.app_title+'再次运行.', ''); } }; //安卓版 ,创建下载对象回调函数(step:6) uexDownloaderMgr.cbCreateDownloader = function(opId, dataType, data) { Log('uexDownloaderMgr.cbCreateDownloader data='+data); if (data == 0) { //updateurl是通过调用cbCheckUpdate回调后,放入全局变量的 uexDownloaderMgr.download('14', updateurl, filepath2+fileName, '0');//开始下载apk文件 } else if (data == 1) { ; } else { ; } }; //提示更新模态框按钮事件回调函数,判断用户选择更新还是取消 (step:5) uexWindow.cbConfirm = function(opId, dataType, data) { Log('uexWindow.cbConfirm '); //调用对话框提示函数 if (data == 0) { //用户点击稍后按钮,不进行更新 } else { //用户点击确定按钮,进行更新 if (platform == 0) { //苹果版更新,通过浏览器加载appstore路径 uexWidget.loadApp(updateurl,'',''); //uexWidget.loadApp("", "", updateurl);//旧方法 已经不可以使用了。 } else if (platform == 1) { //安卓版更新,通过创建下载对象进行下载 uexDownloaderMgr.createDownloader("14"); } else { ; } } }; //调用检查更新回调函数,请求成功后,弹出模态框让用户选择是否现在更新(step:4) uexWidget.cbCheckUpdate = function(opCode, dataType, jsonData) { Log('jsonData='+jsonData); var obj = eval('(' + jsonData + ')'); if (obj.result == 0) { // tips = "更新地址是:" + obj.url + "<br>文件名:" + obj.name + "<br>文件大小:" + // obj.size + "<br>版本号:" + obj.version; updateurl = obj.url; fileName = obj.name+".apk"; getVersionContent(); // var value = "稍后;更新"; // var mycars = value.split(";"); // uexWindow.confirm('', '当前有新版本,是否更新?', mycars);//弹出提示框,是否确定更新 } else if (obj.result == 1) { //苹果 //alert("更新地址是:" + obj.url + "<br>文件名:" + obj.name + "<br>文件大小:" + //obj.size + "<br>版本号:" + obj.version) ;// tips = "当前版本是最新的";alert(tips); } else if (obj.result == 2) { ;// tips = "未知错误";alert(tips); } else if (obj.result == 3) { ;// tips = "参数错误";alert(tips); } }; //检查是否已经存在sd卡的回调函数(step:3) uexFileMgr.cbIsFileExistByPath = function(opCode, dataType, data) { Log('uexFileMgr.cbIsFileExistByPath flag_sdcard='+flag_sdcard+' , data='+data); if (flag_sdcard == 0) { if (data == 0) { Log('sdcard不存在,根据具体情况处理'); } else { //执行检查更新 uexWidget.checkUpdate();//根据config.xml里面配置的检查更新地址发起http请求 } flag_sdcard = 1; } }; //获取平台版本回调函数,确定是客户端是那个平台的客户端 (step:2) uexWidgetOne.cbGetPlatform = function(opId, dataType, data) { Log('uexWidgetOne.cbGetPlatform '); //获取系统版本信息回调函数 platform = data; Log('platform= '+platform); if (data == 0) { // 是iphone uexWidget.checkUpdate();// 直接调用检查更新,检查更新地址在config.xml里面有配置 } else if (data == 1) { // 是android flag_sdcard = 0; uexFileMgr.isFileExistByPath('/sdcard/');//先判断是否存在sd卡,再调用checkUpdate来进行更新 } else { // 是平台 } }; uexWidgetOne.getPlatform();//获取平台版本 (step:1) } function Log(s) { uexLog.sendLog(s); } function getVersionContent(){ var url = web_url+"version.php"; uexXmlHttpMgr.onData = getvSuccess; uexXmlHttpMgr.open(777, "get", url,""); uexXmlHttpMgr.send(777); } function getvSuccess(opid,status,result){ if (status == -1) { uexWindow.toast("0","5","连接不上网络^_^哦","3000"); } if(status==1){ uexXmlHttpMgr.close(777); uexWindow.closeToast(); if(result=="[]"){uexWindow.toast("0","5","无","2000");} else{ var con=eval('(' + result + ')') var value = "稍后;更新"; var mycars = value.split(";"); uexWindow.confirm(con.vtitle, con.vcontent, mycars);//弹出提示框,是否确定更新 } } }
Finally, the app’s config.xml file configuration update address is filled in as:
http://www.i2ty.com/update.php
App update tips:
The content of the pop-up window can be customized according to the content of the version.php file.
The above content is how this article explains how to use the Appcan client to automatically update the PHP version number. I hope it will be helpful to everyone.

PHP is a server-side scripting language used for dynamic web development and server-side applications. 1.PHP is an interpreted language that does not require compilation and is suitable for rapid development. 2. PHP code is embedded in HTML, making it easy to develop web pages. 3. PHP processes server-side logic, generates HTML output, and supports user interaction and data processing. 4. PHP can interact with the database, process form submission, and execute server-side tasks.

PHP has shaped the network over the past few decades and will continue to play an important role in web development. 1) PHP originated in 1994 and has become the first choice for developers due to its ease of use and seamless integration with MySQL. 2) Its core functions include generating dynamic content and integrating with the database, allowing the website to be updated in real time and displayed in personalized manner. 3) The wide application and ecosystem of PHP have driven its long-term impact, but it also faces version updates and security challenges. 4) Performance improvements in recent years, such as the release of PHP7, enable it to compete with modern languages. 5) In the future, PHP needs to deal with new challenges such as containerization and microservices, but its flexibility and active community make it adaptable.

The core benefits of PHP include ease of learning, strong web development support, rich libraries and frameworks, high performance and scalability, cross-platform compatibility, and cost-effectiveness. 1) Easy to learn and use, suitable for beginners; 2) Good integration with web servers and supports multiple databases; 3) Have powerful frameworks such as Laravel; 4) High performance can be achieved through optimization; 5) Support multiple operating systems; 6) Open source to reduce development costs.

PHP is not dead. 1) The PHP community actively solves performance and security issues, and PHP7.x improves performance. 2) PHP is suitable for modern web development and is widely used in large websites. 3) PHP is easy to learn and the server performs well, but the type system is not as strict as static languages. 4) PHP is still important in the fields of content management and e-commerce, and the ecosystem continues to evolve. 5) Optimize performance through OPcache and APC, and use OOP and design patterns to improve code quality.

PHP and Python have their own advantages and disadvantages, and the choice depends on the project requirements. 1) PHP is suitable for web development, easy to learn, rich community resources, but the syntax is not modern enough, and performance and security need to be paid attention to. 2) Python is suitable for data science and machine learning, with concise syntax and easy to learn, but there are bottlenecks in execution speed and memory management.

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.


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