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The main function of comments in PHP is:
(1) Explain the code function.
(2) Debugging program
Single-line comment //Here is the content of the single-line comment
Multi-line comment/*Multi-line comment*/
Shell-style single-line comments#Comment content
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## Several common comment methods in php:
1. Comments in the file header, introducing the file name, function, author version number and other information/** *文件名简单介绍 * *文件功能。 * @author alvin 作者 * @version 1.0 版本号 */2. Function Comments, function functions, parameter introduction and return type
/** * 函数的含义说明 * * @access public * @param mixed $arg1 参数一的说明 * @param mixed $arg2 参数二的说明 * @param mixed $mixed 这是一个混合类型 * @return array 返回类型 */3. Class comments, class name and introduction
/** * 类的介绍 * * 类的详细介绍（可选。）。 * @author alvin 作者 * @version 1.0 版本号 */
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