php该怎么学呢？
以前一直做.Net
最近公司的php程序员跑路了 于是拉我来擦屁股！
之前对php的理解为0
这个星期2开始接触php 也发了很多水贴！
几天下来感觉php
不是想象中的那么容易上手
里面的变量声明方式很不习惯
比如一个变量声明在a.php里
然后b.php 引用 一下
就直接在b里面就使用a里面声明的变量了 如果不仔细看根本不知道它来自哪里 看的人云里雾里
为什么是这么奇葩的方式呢 难道不能声明要全局变量吗？
目前发现的最不爽的就是个
不得不抱怨
之前的程序员除了源码什么也没留下
没有任何文档 数据库的字段也么有任何注释
太他妈坑爹了啊！！！！！！！！！！！！！！！
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A程序员留下的注释：这段代码只有我和上帝看得懂
LZ接了A程序员的活，写下一段注释： 现在只有上帝能看懂了
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PHP还用学？虽然我PHP很烂，但是我直接用着呢。
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找个PHP API看一遍就OK了。
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先看语法，在看例子，最好试着自己写些。
有基础的话，慢慢提高难度。
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看别人代码比自己写还难
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我觉得php的语法是最容易理解的
楼主不要急 慢慢看你也会这么觉得
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代码还是小事，前几天碰到个代码，业务逻辑10几20个elseif分支，然后一句注释没有，还是个封装文件，用在很多地方，直接就放着不敢改，所以代码写得再烂还是要记得写注释，做码农要讲良心。
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我的理解就是看别人的代码，然后准备ｐｈｐ手册之类的哪一块不会了随时查阅。或者删除了一个一个加看功能。一开始看一下别人写的视频
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用心学
PHP's Current Status: A Look at Web Development TrendsApr 13, 2025 am 12:20 AMPHP remains important in modern web development, especially in content management and e-commerce platforms. 1) PHP has a rich ecosystem and strong framework support, such as Laravel and Symfony. 2) Performance optimization can be achieved through OPcache and Nginx. 3) PHP8.0 introduces JIT compiler to improve performance. 4) Cloud-native applications are deployed through Docker and Kubernetes to improve flexibility and scalability.
PHP vs. Other Languages: A ComparisonApr 13, 2025 am 12:19 AMPHP is suitable for web development, especially in rapid development and processing dynamic content, but is not good at data science and enterprise-level applications. Compared with Python, PHP has more advantages in web development, but is not as good as Python in the field of data science; compared with Java, PHP performs worse in enterprise-level applications, but is more flexible in web development; compared with JavaScript, PHP is more concise in back-end development, but is not as good as JavaScript in front-end development.
PHP vs. Python: Core Features and FunctionalityApr 13, 2025 am 12:16 AMPHP and Python each have their own advantages and are suitable for different scenarios. 1.PHP is suitable for web development and provides built-in web servers and rich function libraries. 2. Python is suitable for data science and machine learning, with concise syntax and a powerful standard library. When choosing, it should be decided based on project requirements.
PHP: A Key Language for Web DevelopmentApr 13, 2025 am 12:08 AMPHP is a scripting language widely used on the server side, especially suitable for web development. 1.PHP can embed HTML, process HTTP requests and responses, and supports a variety of databases. 2.PHP is used to generate dynamic web content, process form data, access databases, etc., with strong community support and open source resources. 3. PHP is an interpreted language, and the execution process includes lexical analysis, grammatical analysis, compilation and execution. 4.PHP can be combined with MySQL for advanced applications such as user registration systems. 5. When debugging PHP, you can use functions such as error_reporting() and var_dump(). 6. Optimize PHP code to use caching mechanisms, optimize database queries and use built-in functions. 7
PHP: The Foundation of Many WebsitesApr 13, 2025 am 12:07 AMThe reasons why PHP is the preferred technology stack for many websites include its ease of use, strong community support, and widespread use. 1) Easy to learn and use, suitable for beginners. 2) Have a huge developer community and rich resources. 3) Widely used in WordPress, Drupal and other platforms. 4) Integrate tightly with web servers to simplify development deployment.
Beyond the Hype: Assessing PHP's Role TodayApr 12, 2025 am 12:17 AMPHP remains a powerful and widely used tool in modern programming, especially in the field of web development. 1) PHP is easy to use and seamlessly integrated with databases, and is the first choice for many developers. 2) It supports dynamic content generation and object-oriented programming, suitable for quickly creating and maintaining websites. 3) PHP's performance can be improved by caching and optimizing database queries, and its extensive community and rich ecosystem make it still important in today's technology stack.
What are Weak References in PHP and when are they useful?Apr 12, 2025 am 12:13 AMIn PHP, weak references are implemented through the WeakReference class and will not prevent the garbage collector from reclaiming objects. Weak references are suitable for scenarios such as caching systems and event listeners. It should be noted that it cannot guarantee the survival of objects and that garbage collection may be delayed.
Explain the __invoke magic method in PHP.Apr 12, 2025 am 12:07 AMThe \_\_invoke method allows objects to be called like functions. 1. Define the \_\_invoke method so that the object can be called. 2. When using the $obj(...) syntax, PHP will execute the \_\_invoke method. 3. Suitable for scenarios such as logging and calculator, improving code flexibility and readability.
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