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php editor Baicao brings you a practical guide "Let the Code Speak: A Practical Guide to PHPDoc Documents". PHPDoc is a commonly used document comment format in PHP, which can help developers better understand and maintain the code. This guide will introduce in detail how to use PHPDoc specifications to write documentation comments, and how to use PHPDoc to generate code documentation to make your code clearer and easier to understand. Let's explore together how to let the code speak through documentation and improve code quality and maintainability!
PHPDoc uses a syntax based on comment blocks. Comment blocks start with "/*" and end with "/". Comment blocks contain descriptive metadata for classes, methods, functions, and constants.
Description metadata
phpDoc provides the following common description metadata:
Demo code:
/** * @param int $number 整数 * @return string 字符串 */ function fORMatNumber(int $number): string { return number_format($number); }
Commentation method
When annotating a method, include the following information:
Demo code:
/** * @param string $name 姓名 * @param string $email 邮件地址 * @return bool 是否注册成功 * @throws InvalidArgumentException 如果 $name 或 $email 为空 */ public function reGISterUser(string $name, string $email): bool { // 业务逻辑 }
Annotation class
Class comments provide an overall description about the class and document its methods and properties.
Demo code:
/** * 用户类 */ class User { /** * 用户名 * * @var string */ private $username; /** * 获取用户名 * * @return string */ public function getUsername(): string { return $this->username; } /** * 设置用户名 * * @param string $username 用户名 */ public function setUsername(string $username): void { $this->username = $username; } }
Comment constants
Constant annotations provide descriptions about constant names and values.
Demo code:
/** * 用户状态:活跃 */ const STATUS_ACTIVE = 1;
Using PHPDoc tools
There are many tools that can help you automate the generation of PHPDoc, for example:
Best Practices
The following are some best practices for writing high-quality PHPDoc comments:
in conclusion
PHPDoc documentation is a valuable tool for improving the readability, maintainability, and testability of your PHP code. By using PHPDoc's description metadata and tools, you can generate detailed and valuable comments, making your code easy to understand and maintain.
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