PHP Comments

A comment in PHP code is used to understand the code which is not executed as a part of program.

PHP supports single line and multi line comments.

Used of PHP Comments

Understand your code for yours or others.
While working on big projects we need to define the comments to show the working of any functions and any part of code.

Types of PHP Comments

Single Line Comments
Multi Line Comments

PHP Single Line Comments

Syntax for single-line comments

<!DOCTYPE html>
<html>
<body>

<?php
// This is a single-line comment

# This is also a single-line comment
?>

</body>
</html>

PHP Multi Line Comments

Syntax for multiple-line comments

<!DOCTYPE html>
<html>
<body>

<?php
/*
This is a multiple-lines comment block
that spans over multiple
lines
*/
?>

</body>
</html>

We can use Comments to leave out parts of the code

<!DOCTYPE html>
<html>
<body>

<?php
// You can also use comments to leave out parts of a code line
$x = 5 /* + 15 */ + 5;
echo $x;
?>

</body>
</html>

OUTPUT

10

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