改掉这些坏习惯，你不在是菜鸟
1. 不会利用如phpDoc这样的工具来恰当地注释你的代码
2. 对优秀的集成开发环境如Zend Studio或Eclipse PDT视而不见
3. 从未用过任何形式的版本控制系统，如Subclipse
4. 不采用某种编码与命名标准，以及通用约定，不能在项目开发周期里贯彻落实
5. 不使用统一开发方式
6. 不转换（或）也不验证某些输入或SQL查询串（译注：参考PHP相关函数）
7. 不在编码之前彻底规划你的程序
8. 不使用测试驱动开发
9. 不在错误开启状态下进行编码和测试（译注：参考PHP函数error_reporting）
10. 对调试器的好处视而不见
11. 不重构你的代码
12. 不使用类似MVC模式把程序的不同层次划分开
13. 不知道这些概念：KISS, DRY, MVC, OOP, REST
14. 不用return而是直接在你的函数或类中输出（echo/print）内容
15. 对单元测试或通用测试的优点视而不见
16. 总是返回硬编码的HTML，却不返回纯粹的数据，字符串，或对象
17. 总是对“消息”和“配置参数”进行硬编码
18. 不对SQL查询语句做优化
19. 不使用__autoload（译注：参考PHP手册相关描述）
20. 不允许智能错误处理（译注：参考PEAR的ErrorStack）
21. 使用$_GET替代$_POST来做具有破坏性的传递操作
22. 不知道怎么利用正则表达式
23. 从未听说过SQL注入或跨站脚本
24. 不允许简易配置，也不允许类的构造函数接受参数传递而后执行set/get方法，或运行时的常量定义
25. 不理解面向对象编程（OOP）的优势和劣势
26. 不视情形大小而滥用OOP
27. 自认为实现可复用的软件一定等于/需要让你的代码遵循OOP
28. 不利用智能缺省值
29. 没有单一的配置文件
30. 不想暴露文件源码，却用.inc后缀名取代了.php
31. 不使用数据库抽象层
32. 不能保持DRY作风，即不重复自己，如果你总是在复制粘贴一些东西，说明你设计得很差劲
33. 没有实现让一个函数/类/方法只做一件事，也不能组合利用它们
34. 没能尝试OOP的特长，如抽象类、接口、多态、继承，访问控制修饰符（译注：如public, private, protected）
35. 不用现有的设计模式优化你的程序体系设计
36. 不允许你的用户在你拥有很多文件或目录的情况下定义基础目录
37. 污染了名称空间，比如用常见字符串命名你的库函数
38. 使用数据库表时不使用表前缀
39. 不使用统一的模板引擎
40. 不关注已有的PHP开发框架，懒于探索；其实先进的开发理念和美妙代码就蕴含其中。
PHP vs. Python: Understanding the DifferencesApr 11, 2025 am 12:15 AMPHP and Python each have their own advantages, and the choice should be based on project requirements. 1.PHP is suitable for web development, with simple syntax and high execution efficiency. 2. Python is suitable for data science and machine learning, with concise syntax and rich libraries.
PHP: Is It Dying or Simply Adapting?Apr 11, 2025 am 12:13 AMPHP is not dying, but constantly adapting and evolving. 1) PHP has undergone multiple version iterations since 1994 to adapt to new technology trends. 2) It is currently widely used in e-commerce, content management systems and other fields. 3) PHP8 introduces JIT compiler and other functions to improve performance and modernization. 4) Use OPcache and follow PSR-12 standards to optimize performance and code quality.
The Future of PHP: Adaptations and InnovationsApr 11, 2025 am 12:01 AMThe future of PHP will be achieved by adapting to new technology trends and introducing innovative features: 1) Adapting to cloud computing, containerization and microservice architectures, supporting Docker and Kubernetes; 2) introducing JIT compilers and enumeration types to improve performance and data processing efficiency; 3) Continuously optimize performance and promote best practices.
When would you use a trait versus an abstract class or interface in PHP?Apr 10, 2025 am 09:39 AMIn PHP, trait is suitable for situations where method reuse is required but not suitable for inheritance. 1) Trait allows multiplexing methods in classes to avoid multiple inheritance complexity. 2) When using trait, you need to pay attention to method conflicts, which can be resolved through the alternative and as keywords. 3) Overuse of trait should be avoided and its single responsibility should be maintained to optimize performance and improve code maintainability.
What is a Dependency Injection Container (DIC) and why use one in PHP?Apr 10, 2025 am 09:38 AMDependency Injection Container (DIC) is a tool that manages and provides object dependencies for use in PHP projects. The main benefits of DIC include: 1. Decoupling, making components independent, and the code is easy to maintain and test; 2. Flexibility, easy to replace or modify dependencies; 3. Testability, convenient for injecting mock objects for unit testing.
Explain the SPL SplFixedArray and its performance characteristics compared to regular PHP arrays.Apr 10, 2025 am 09:37 AMSplFixedArray is a fixed-size array in PHP, suitable for scenarios where high performance and low memory usage are required. 1) It needs to specify the size when creating to avoid the overhead caused by dynamic adjustment. 2) Based on C language array, directly operates memory and fast access speed. 3) Suitable for large-scale data processing and memory-sensitive environments, but it needs to be used with caution because its size is fixed.
How does PHP handle file uploads securely?Apr 10, 2025 am 09:37 AMPHP handles file uploads through the $\_FILES variable. The methods to ensure security include: 1. Check upload errors, 2. Verify file type and size, 3. Prevent file overwriting, 4. Move files to a permanent storage location.
What is the Null Coalescing Operator (??) and Null Coalescing Assignment Operator (??=)?Apr 10, 2025 am 09:33 AMIn JavaScript, you can use NullCoalescingOperator(??) and NullCoalescingAssignmentOperator(??=). 1.??Returns the first non-null or non-undefined operand. 2.??= Assign the variable to the value of the right operand, but only if the variable is null or undefined. These operators simplify code logic, improve readability and performance.
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