PHP Comments
Posted 2024-05-17 07:14:49
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Comments in PHP
A comment in PHP code is a line that is not executed as a part of the program. Its only purpose is to be read by someone who is looking at the code.
Comments can be used to:
- Let others understand your code
- Remind yourself of what you did - Most programmers have experienced coming back to their own work a year or two later and having to re-figure out what they did. Comments can remind you of what you were thinking when you wrote the code
- Leave out some parts of your code
PHP supports several ways of commenting:
ExampleGet your own PHP Server
Syntax for comments in PHP code:
// This is a single-line comment
# This is also a single-line comment
/* This is a
multi-line comment */
Try it Yourself »Single Line Comments
Single line comments start with //
.
Any text between //
and the end of the line will be ignored (will not be executed).
You can also use #
for single line comments, but in this tutorial we will use //
.
The following examples uses a single-line comment as an explanation:
Example
A comment before the code:
// Outputs a welcome message:
echo "Welcome Home!";
Try it Yourself »Example
A comment at the end of a line:
echo "Welcome Home!"; // Outputs a welcome message
Try it Yourself »Comments to Ignore Code
We can use comments to prevent code lines from being executed:
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