Put specifications first: the benefits and methods of learning to write specifications in PHP

Put specifications first: the benefits and methods of learning PHP writing specifications

1. Introduction
Programming specifications are one of the basic qualities necessary for programmers , plays an important role in ensuring code quality, readability, maintainability, etc. For PHP programmers, learning and complying with PHP writing specifications is an important step to improve their own abilities and improve the efficiency of team collaboration. This article will discuss the benefits of learning PHP writing standards and provide methods and examples.

2. The benefits of learning PHP writing standards

1. Improve code quality: Standardized coding habits can reduce the occurrence of errors and loopholes, and improve the reliability and security of the program.
2. Improve code readability: Standardized naming and structure can make it easier for other developers to understand the logic when reading the code and improve team collaboration efficiency.
3. Easy to maintain and expand: The code structure that complies with the specifications is clear, easy for future maintenance and function expansion, and reduces the cost of code reconstruction.
4. Improve programming efficiency: The specification defines a standard set of naming, comments, and coding styles so that developers can write, test, and debug code more quickly.

3. Learn how to write PHP specifications

1. Learn and follow the PHP-FIG standard: PHP-FIG (PHP Framework Interop Group) is a group of A standardization organization composed of large PHP frameworks. They provide a series of specifications, such as PSR-1, PSR-2, etc. These specifications are widely accepted and used in PHP development. Learning and following these specifications is the first step in learning PHP writing specifications.
   For example, the PSR-1 specification requires that be used in the code instead of respectively, indentation must use 4 spaces, constructors must use CamelCase naming, etc. .
   class ExampleClass
   {

    public function __construct()
    {
        // 代码逻辑
    }

   }

2. Use static code analysis tools: Static code analysis tools such as PHP_CodeSniffer, PHPStorm, etc. can scan and check whether the code complies with specifications. Developers can integrate it into their IDE to detect code in real time and make changes accordingly. For example, PHP_CodeSniffer provides many predefined specification sets, such as PEAR, Zend, etc. Developers can choose the appropriate specification set for code detection and repair.
   Examples are as follows:
   $foo='hello ';
   $bar='world!';
   echo $foo,$bar;

Code detection results:
1 | PERFORMANCE | Concatenating translatable strings together instead of using implode().
2 | WHITESPACE | Expected 1 space before ','; $bar found.
2 | WHITESPACE | Expected 1 space after ','; $bar found.
2 | WHITESPACE | Expected 1 space before ' '; $bar found.

3. Refer to common coding standards guidelines: except PHP- In addition to the FIG specification, there are also some common coding specification guidelines, such as Google PHP coding specification, WordPress coding specification, etc. These guides provide more specific, practical advice that can be used as a reference for learning and for review and discussion with team members. Regularly sharing, reviewing, and improving specifications with team members is key to maintaining high-quality code in the long term.

4. Summary
Learning and complying with PHP coding standards is an important step to improve one's own abilities and enhance the efficiency of team collaboration. Through standardized coding conventions, code quality, readability and maintainability can be improved, errors and reconstruction costs can be reduced, and programming efficiency can be improved. In order to learn and comply with PHP coding standards, developers can integrate standardized coding habits into daily development by learning the PHP-FIG standard, using static code analysis tools, and referring to commonly used coding standards guidelines. Putting standards first along the way makes our code more elegant, easier to read, and easier to maintain.

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