Six experiences in learning PHP_PHP tutorial
1. Summary: To learn any language, you need to read more, think more, write more and ask more! ! Writing programming is something that practice makes perfect! Because there is only so much knowledge, and if you read too much, you will think that everything is the same.
Programmers are the ones who do the same thing over and over again. After typing the code a few times, you can write it with your eyes closed, so corporate recruitment will ask you how many lines of code you have written! ! Programmers are most afraid of being impetuous. Sometimes they find that no errors can be found in a program, just because there is one missing or extra symbol. What programmers need is carefulness. Careless people cannot be programmers!
2. You must be familiar with the PHP reference manual. Some beginners will ask some very basic questions. In fact, they are all in the manual. Therefore, it is recommended that beginners read the manual first. It is best to copy the commonly used functions. Several times! ! Type the code in the manual a few more times.
When you are familiar with everything in the manual, the possibility of you encountering problems will be very small. Of course, you have to read the mysql manual, but you don’t have to read it in detail first! At least you must know the commonly used SQL statements, this is a must!
3. I think the best thing about PHP is that there are many open source projects that can be found online, and some of them are big projects. Therefore, it is recommended that beginners read the message board code to familiarize themselves with commonly used data operations. Then they can look at simple corporate websites or blogs, and then they can study ecshop and the like. When you understand these, you can look at discuz. , the phpwind forum source code, the structure inside is quite powerful, of course this is not what beginners need to do, but there must always be an ideal to be a general!
4. Get used to it and solve problems by yourself first. In the Internet age, it is necessary to learn to use Baidu and Google. When you really can't solve it, ask for help from others! !
5. When you finish writing a program, learn to share it. Because you are a beginner, your program may have many imperfections, so it is more beneficial to you to share the program you wrote. ! ! Share more and communicate more! Only then will the programs you write become more precise! !
6. Remember, after learning PHP, you not only need to learn PHP, you also need to learn to analyze the implementation of a project or the implementation of a program. It is said that algorithms are the basis of language. To learn PHP well, you have to learn and use algorithms to implement your programs. Learning to use algorithms can be used in any language. To learn to use PHP, you can only use PHP.

What’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 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 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 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.

PHP is suitable for web development and rapid prototyping, and Python is suitable for data science and machine learning. 1.PHP is used for dynamic web development, with simple syntax and suitable for rapid development. 2. Python has concise syntax, is suitable for multiple fields, and has a strong library ecosystem.

PHP remains important in the modernization process because it supports a large number of websites and applications and adapts to development needs through frameworks. 1.PHP7 improves performance and introduces new features. 2. Modern frameworks such as Laravel, Symfony and CodeIgniter simplify development and improve code quality. 3. Performance optimization and best practices further improve application efficiency.

PHPhassignificantlyimpactedwebdevelopmentandextendsbeyondit.1)ItpowersmajorplatformslikeWordPressandexcelsindatabaseinteractions.2)PHP'sadaptabilityallowsittoscaleforlargeapplicationsusingframeworkslikeLaravel.3)Beyondweb,PHPisusedincommand-linescrip

PHP type prompts to improve code quality and readability. 1) Scalar type tips: Since PHP7.0, basic data types are allowed to be specified in function parameters, such as int, float, etc. 2) Return type prompt: Ensure the consistency of the function return value type. 3) Union type prompt: Since PHP8.0, multiple types are allowed to be specified in function parameters or return values. 4) Nullable type prompt: Allows to include null values and handle functions that may return null values.


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