Comments in PHP
PHP | Comments
A comment in PHP code is a line that is not executed as a part of the program. It's only read by someone who is looking at the code. By reading the comments used in the code, one can easily understand the purpose of the code snippet.
Let's see PHP commenting ways:
single line comment
To make a single line comments. Simply start the line with a double forward slashes (//) or hash tag (#). They are generally used for short explanations or notes relevant to the code.
<!DOCTYPE html> <html> <body> <?php // This is a single-line comment # This is also a single-line comment # Add two numbers $x = 5 + 10; echo $x; // Output sum value ?> </body> </html>
Multiple line comments
Multiple line comments start with a forward slash followed by the asterisk /* and end with the asterisk followed by the forward slash */. They are generally used to provide more detailed explanations when necessary
<!DOCTYPE html> <html> <body> <?php /* Author : Studyzone4U Purpose: Multiline Comments Demo Subject: PHP */ echo "This is a multiple-lines comment block that spans over multiple lines"; ?> </body> </html>
You can also use the comments to leave out parts of a code line
<!DOCTYPE html> <html> <body> <?php // leaving out parts of a code $x = 5 /* + 10 */ + 10; echo $x; ?> </body> </html>