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Comments in PHP

When you write a PHP script, you can include text comments that will be ignored by the PHP parser.

Here are a few good reasons to include comments in your PHP scripts:

As bookmarks inside large scripts.
As a reminder of why you wrote a certain section the way you did it.
As explanations and indications for fellow programmers/collaborators.
As copyright notices, if other people will have access to your code.
You can write a good joke. Who knows, maybe someday someone else is going to read it and have a good time.

Single line comments

To write a single-lined comment, just start it with two forward slashes.

Example:

<?php
 // This is a comment, it will be ignored by the PHP parser
 echo 'Hello world';
 // I would love to change the world, but they won't give me the source code
?>

Multiple line comments

You can also write multi-line comments by enclosing them between /* and */.

Example:

<?php
 /* This is a multi-line comment.
 It will be ignored by the PHP parser.
 Regards to you all! */
 echo 'Hello world';
?>

Remember, the PHP parser ignores the comments; thus they are not sent to the client's browser.

Now follow through our next tutorial – Variables in PHP.

TUTORIALS » PHP / MySQL » PHP essentials (guided tutorials)

Comments in PHP

Single line comments

Multiple line comments

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