PHP Comments

Comments in PHP are used to explain the code and make it more readable. They are ignored by the PHP interpreter and do not affect the execution of the script.

1. Single-Line Comments

PHP provides two ways to write single-line comments: using // or #.

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

   # This is a single-line comment using #
   echo "PHP is fun!";
?>

2. Multi-Line Comments

If you need to write comments spanning multiple lines, you can use /* ... */.

<?php
    /*
    This is a multi-line comment.
    It can span across multiple lines.
    Useful for temporarily disabling code or adding explanations.
    */
    echo "Learning PHP comments!";
?>

3. Using Comments to Disable Code

You can use comments to temporarily disable parts of the code during debugging or development.

<?php
    echo "This will be displayed.";

    // echo "This line is commented out and won't run.";

    /*
    echo "This line is also commented out.";
    echo "This one too.";
    */
?>

Conclusion

Comments are essential for writing clean, understandable code. Use them wisely to document your scripts and make them easier to maintain.