What are the comment symbols in php

Comment characters in PHP are used to add explanatory text. There are two types: single-line comments (//): comment on one line, starting with // and ending at the end of the line. Multi-line comment (/ /): Comment multiple lines, starting with / and ending with /.

Comment symbols in PHP

In PHP, comment symbols are used to add descriptive text in the code , helping developers understand the logic and purpose of the code. There are two main comment characters in PHP:

Single-line comments:

• Use the // symbol starting with
• Comments end at the end of the line
• Commonly used to comment a single statement or code block

Multi-line comments:

• Start with the /* symbol and end with the */ symbol
• Comments can span multiple lines
• are often used to comment functions, classes or large code blocks

Example:

Single-line comments:

// 这是一条单行注释
echo "Hello, world!";

Multi-line comments:

/*
 * 这是一个多行注释
 * 它可以跨越多行
 * 并包含更详细的信息
 */

// 代码在此继续

Note:

• comment characters will not be executed by the PHP interpreter.
• Comments exist to improve the readability and maintainability of the code.
• It is recommended to use comments in the code to explain complex logic or non-obvious implementation.

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