PHP Comments

⭐ PHP Comments

PHP Comments are used to explain code and make it more readable.

It supports three types of comments:

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1. Single-line Comment (//)

Used for short notes or explanations.

PHP

<?php // This is a single-line comment echo "Hello World!"; ?>

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<?php // This is a single-line comment echo "Hello World!"; ?>

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2.  Single-line Comments (#)

An alternative single-line comment style (like in shell scripts).

PHP

<?php # This is also a single-line comment echo "PHP Comments Example"; ?>

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<?php # This is also a single-line comment echo "PHP Comments Example"; ?>

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3. Multi-line Comment (/ … /)

Used when you need longer explanations.

PHP

<?php /* This is a multi-line comment. You can write as many lines as you want. Useful for documentation. */ echo "Welcome!"; ?>

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<?php /* This is a multi-line comment. You can write as many lines as you want. Useful for documentation. */ echo "Welcome!"; ?>

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⭐ Why Comments Are Important?

• Helps you understand your code later

• Useful when working in teams

• Helps debug or temporarily disable lines

Example of disabling code:

PHP

<?php // echo "This won't run"; echo "This line runs"; ?>

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<?php // echo "This won't run"; echo "This line runs"; ?>

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⭐ Example Showing All Types

PHP

<?php // Single-line comment # Another single-line comment /* Multi-line comment explaining the logic below */ $name = "Vipul"; echo "Hello $name!"; ?>

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<?php   // Single-line comment # Another single-line comment   /* Multi-line comment explaining the logic below */   $name = "Vipul"; echo "Hello $name!";   ?>

 

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If you want, I can continue with the next topic:
👉 PHP Variables
👉 PHP Data Types
👉 PHP echo & print

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