到了大三才开始学习WEB开发,当时什么也不懂,糊里糊涂地选择了 ASP.NET,并且一直使用到现在。也是在大三的时候 才知道有PHP这东西,那时我的一个舍友在使用它。我以前一直都是学C语言的,习惯了C语言的语法,一看到PHP的那些$符号我就头大,这对于已经被C语言先入为主的菜鸟来说,真是件很不适应的事情。于是就放弃了PHP,一心学习 ASP.NET。
觉得微软真的很伟大,他的产品是那么的简单易用,而且都是图形化的。降低了电脑的入门门槛,让我们人人都能轻易地成为程序员。我一直都不喜欢用JAVA,因为我实在对那些XML的配置文件有着严重的恐惧。有些人说,微软都把人变成傻瓜了。我觉得那些人真的很没趣,科技的力量就是让生活更加的简单,就会搞几下配置文件有什么值得骄傲的。难道抽根烟还需要钻木取火吗,用打火机就行了。
最近要帮女朋友做个小网站,那个网站具体是放在什么样的服务器,支持什么后台技术,我女朋友也不知道。为了提高网站的适应性,免得做出来用不了就麻烦了,想来想去,我选择了PHP。PHP在国内这么流行,又是免费的,应该不会有哪个服务器不支持它吧。而且最近迷上了Linux,发现PHP用得还真的挺广泛的,还有一些其它的原因,让我对PHP有了些兴趣,就顺便拿这个小网站来练练手吧。
开源的东西都会有这么一个问题,开发框架很多,各说各的好,这让我一个菜鸟初学者如何选择啊。这让我想起一句话,太多选择就等于无法选择。由于时间也比较紧张,没有心思选框架学框架,瞄了几眼PHP的语法就直接动手做咯。
使用之后才发现,PHP用起来其实还是挺顺手的。用习惯了ASP.NET,开发时自然会想到要弄个三层结构,做PHP也不例外,直接把PertShop的三层结构套进去用,我的PHP编程之旅开始了。

PHPidentifiesauser'ssessionusingsessioncookiesandsessionIDs.1)Whensession_start()iscalled,PHPgeneratesauniquesessionIDstoredinacookienamedPHPSESSIDontheuser'sbrowser.2)ThisIDallowsPHPtoretrievesessiondatafromtheserver.

The security of PHP sessions can be achieved through the following measures: 1. Use session_regenerate_id() to regenerate the session ID when the user logs in or is an important operation. 2. Encrypt the transmission session ID through the HTTPS protocol. 3. Use session_save_path() to specify the secure directory to store session data and set permissions correctly.

PHPsessionfilesarestoredinthedirectoryspecifiedbysession.save_path,typically/tmponUnix-likesystemsorC:\Windows\TemponWindows.Tocustomizethis:1)Usesession_save_path()tosetacustomdirectory,ensuringit'swritable;2)Verifythecustomdirectoryexistsandiswrita

ToretrievedatafromaPHPsession,startthesessionwithsession_start()andaccessvariablesinthe$_SESSIONarray.Forexample:1)Startthesession:session_start().2)Retrievedata:$username=$_SESSION['username'];echo"Welcome,".$username;.Sessionsareserver-si

The steps to build an efficient shopping cart system using sessions include: 1) Understand the definition and function of the session. The session is a server-side storage mechanism used to maintain user status across requests; 2) Implement basic session management, such as adding products to the shopping cart; 3) Expand to advanced usage, supporting product quantity management and deletion; 4) Optimize performance and security, by persisting session data and using secure session identifiers.

The article explains how to create, implement, and use interfaces in PHP, focusing on their benefits for code organization and maintainability.

The article discusses the differences between crypt() and password_hash() in PHP for password hashing, focusing on their implementation, security, and suitability for modern web applications.

Article discusses preventing Cross-Site Scripting (XSS) in PHP through input validation, output encoding, and using tools like OWASP ESAPI and HTML Purifier.


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