PHP程序员应该掌握的常见技能
1、语法：必须比较熟悉，在写代码的时候IDE的编辑器对某一行报错应该能够根据报错信息知道是什么样的语法错误并且知道任何修正。
2、命令：必须熟悉PHP带的一些常用命令及其常用选项，熟悉那些命令，自己运行php.exe -h 如果这些命令你没有全部使用过，那么你对PHP实际上还很不了解。
3、工具：必须至少熟练使用一种IDE的开发工具，例如：Eclipse、Netbeans、zend或者editplus，ultraedit，包括进行工程管理、常用选项的设置、PHP插件的安装配置以及进行调试。
4、API：PHP的核心API是非常庞大的，但是有一些内容笔者认为是必须熟悉的，否则不可能熟练的运用PHP，包括：
◆ 文件目录处理函数包80%以上的函数的功能的灵活运用。
◆ 日期时间函数中的80%以上的函数的功能的灵活运用
◆ 数学函数库中的100%的内容。
◆ 网络库中的60%以上的内容，对各个函数的功能比较熟悉。
◆ 字符串处理函数下的60%以上的内容，特别是各种处理函数。
◆ 正则表达式函数下的90%以上的内容，特别是各种正则处理
◆ 一些安全库下的40%以上的内容，如果对于安全没有接触的话根本就不可能掌握PHP
◆ XML处理，熟悉SAX、DOM以及JDOM的优缺点并且能够使用其中的一种完成XML的解析及内容处理。
◆ 图形图像函数库下的80%以上的内容，特别是一些图像生成和处理
◆ MySQL 数据库函数下的90%以上的内容，特别是处理各种数据的函数
◆ 数组处理函数下的90%以上的内容，特别是各种操作处理函数
◆ 其它PEAR，PECL，和一些扩展类库中的80%以上的内容，特别是一些常用的类的处理
◆ 针对不同的需求，查找不同的函数库。
5、测试：必须熟悉使用phpunit编写测试用例完成代码的自动测试。
6、管理：必须熟悉使用xinc, phing等完成工程管理的常用任务，例如工程编译、生成phpdoc、生成、版本控制、自动测试。
7、排错：应该可以根据异常信息比较快速的定位问题的原因和大致位置。
8、思想：必须掌握OOP的主要要求，这样使用PHP开发的系统才能是真正的PHP系统。
9、规范：编写的代码必须符合流行的编码规范，这样程序的可读性才比较好。
10、博学：掌握OOA、OOD、MS SQL Server、Oracle 、Zendframework、cakephp、symfony、模板技术等流行技术，掌握软件架构设计思想、搜索引擎优化、缓存系统设计、网站负载均衡、系统性能调优等实用技术。
How do you set the session cookie parameters in PHP?Apr 22, 2025 pm 05:33 PMSetting session cookie parameters in PHP can be achieved through the session_set_cookie_params() function. 1) Use this function to set parameters, such as expiration time, path, domain name, security flag, etc.; 2) Call session_start() to make the parameters take effect; 3) Dynamically adjust parameters according to needs, such as user login status; 4) Pay attention to setting secure and httponly flags to improve security.
What is the main purpose of using sessions in PHP?Apr 22, 2025 pm 05:25 PMThe main purpose of using sessions in PHP is to maintain the status of the user between different pages. 1) The session is started through the session_start() function, creating a unique session ID and storing it in the user cookie. 2) Session data is saved on the server, allowing data to be passed between different requests, such as login status and shopping cart content.
How can you share sessions across subdomains?Apr 22, 2025 pm 05:21 PMHow to share a session between subdomains? Implemented by setting session cookies for common domain names. 1. Set the domain of the session cookie to .example.com on the server side. 2. Choose the appropriate session storage method, such as memory, database or distributed cache. 3. Pass the session ID through cookies, and the server retrieves and updates the session data based on the ID.
How does using HTTPS affect session security?Apr 22, 2025 pm 05:13 PMHTTPS significantly improves the security of sessions by encrypting data transmission, preventing man-in-the-middle attacks and providing authentication. 1) Encrypted data transmission: HTTPS uses SSL/TLS protocol to encrypt data to ensure that the data is not stolen or tampered during transmission. 2) Prevent man-in-the-middle attacks: Through the SSL/TLS handshake process, the client verifies the server certificate to ensure the connection legitimacy. 3) Provide authentication: HTTPS ensures that the connection is a legitimate server and protects data integrity and confidentiality.
The Continued Use of PHP: Reasons for Its EnduranceApr 19, 2025 am 12:23 AMWhat’s still popular is the ease of use, flexibility and a strong ecosystem. 1) Ease of use and simple syntax make it the first choice for beginners. 2) Closely integrated with web development, excellent interaction with HTTP requests and database. 3) The huge ecosystem provides a wealth of tools and libraries. 4) Active community and open source nature adapts them to new needs and technology trends.
PHP and Python: Exploring Their Similarities and DifferencesApr 19, 2025 am 12:21 AMPHP and Python are both high-level programming languages that are widely used in web development, data processing and automation tasks. 1.PHP is often used to build dynamic websites and content management systems, while Python is often used to build web frameworks and data science. 2.PHP uses echo to output content, Python uses print. 3. Both support object-oriented programming, but the syntax and keywords are different. 4. PHP supports weak type conversion, while Python is more stringent. 5. PHP performance optimization includes using OPcache and asynchronous programming, while Python uses cProfile and asynchronous programming.
PHP and Python: Different Paradigms ExplainedApr 18, 2025 am 12:26 AMPHP is mainly procedural programming, but also supports object-oriented programming (OOP); Python supports a variety of paradigms, including OOP, functional and procedural programming. PHP is suitable for web development, and Python is suitable for a variety of applications such as data analysis and machine learning.
PHP and Python: A Deep Dive into Their HistoryApr 18, 2025 am 12:25 AMPHP originated in 1994 and was developed by RasmusLerdorf. It was originally used to track website visitors and gradually evolved into a server-side scripting language and was widely used in web development. Python was developed by Guidovan Rossum in the late 1980s and was first released in 1991. It emphasizes code readability and simplicity, and is suitable for scientific computing, data analysis and other fields.
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