PHP程序员的40点陋习
1、不写注释
2、不使用可以提高生产效率的IDE工具
3、不使用版本控制
4、不按照编程规范写代码
5、不使用统一的方法
6、编码前不去思考和计划
7、在执行sql前不执行编码和安全检测
8、不使用测试驱动开发
9、编码时不打开自动报错(error_reporting)
10、不使用一种好的调试工具
11、不重构你的代码(refactor)
12、不采用MVC这样的分层结构
13、不知道以下等等概念:KISS,DRY,MVC,OOP,REST
14、在函数或者类里直接用print或者echo输出东西而不是返回(return)
15、不使用也不去了解单元测试
16、返回HTMl而不是data,strings,objects等类型
17、糟糕的代码和配置参数(hard code messages and configuration parameters)
18、不优化sql查询
19、不使用__autoload
20、不支持自动错误操作(应该是智能纠错)
21、使用$_GET替代$_POST去进行危险的参数传递(记得这40条都是错误的东西)
22、不知道怎样使用正则表达式
23、从未听说过sql注入和跨站脚本(安全方面,应该了解下这两个东西的英文:sql injection,cross-site scripting)
24、不支持简单配置,传递参数给类的构造函数,set/get方法,定义常量
25、不能理解OOP的优缺点
26、无论要做的东西有多小,都使用OOP
27、认为做可复用的软件就是OOP
28、不使用缺省值(don't choose intelligent defaults)
29、不使用单一配置文件
30、不想让别人看到代码,却使用.inc替换掉.php
31、不使用数据库抽象层(持久层)
32、开发时不DRY(Dont repeat yourself). (就是总开发重复的东西)
33、不开发可以重复使用的类或者方法
34、不使用抽象类或者接口类,继承,多态,封装.
35、不使用已有的设计模式优化你的程序.
36、不允许使用者定义基础目录(这点好象PHP不太适合,毕竟不是基于操作系统的开发)
37、错误的使用命名空间,使用大家都普遍使用的单词作为前缀.(这样以后别人使用会造成冲突.,例如自己定义一个function 叫 array_push())
38、使用数据库时不使用表前缀(这个很重要...)
39、不使用或者使用一个陌生的模板引擎(方便团队开发,大家要使用常见的模板)
40、不去看PHP的框架(大多数框架中都包含优秀的代码和先进的概念.值得我们学习)
- 1楼Jony的后院
- mark

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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