In PHP, you can use comments to add explanatory or descriptive text within your code. Comments are not executed by the PHP interpreter and are solely meant for human readers to understand the code. They are useful for providing documentation, making notes, or temporarily disabling code segments. PHP supports two types of comments:
- Single-line comments: To create a single-line comment, you can use two forward slashes (//) at the beginning of the line. Anything after the slashes will be treated as a comment and ignored by the interpreter. For example:
// This is a single-line comment in PHP
- Multi-line comments: If you need to add comments that span multiple lines, you can enclose them between /* and */. Everything between these delimiters will be considered a comment. For example:
/* This is a multi-line comment in PHP that can span across multiple lines. */
Here’s an example of how comments can be used within PHP code:
<?php // This is a single-line comment /* This is a multi-line comment that provides an explanation of the code below. */ echo "Hello, World!"; // This line prints "Hello, World!" ?>
Remember, comments are ignored by the PHP interpreter, so they don’t affect the execution of the code. They are purely for code documentation and readability purposes.