Comments in php are lines of code that are not executed when the script is run. They are used to provide information about the code for future reference and can be useful when debugging. Comments can also help you to make your code more readable and easier for other developers to understand.
PHP supports both single-line and multi-line comments. A one-line comment starts with the pound symbol (#) or double forward slash (//), and all text after this is ignored by the interpreter. Multi-line comments start with /* and end with */.
Comments can be used to explain the purpose of specific code or to make general notes about a block of code. This makes the code easier to read and maintain, especially for other developers. It also helps to document what the code is doing and why it was written in the first place. Comments can also be useful for debugging a program, as they allow you to temporarily disable particular parts of the code and test whether or not an error is occurring.
There are two types of single line comments in PHP: ‘C’ style and shell comments. ‘C’ style comments are usually used in programming languages like C, C++, and Java. They begin with the character pair
PHP has an in-built feature that allows you to create multi-line comments. These comments are identified by the opening tag
To create a multi-line comment, place your cursor on the required line of code and either type the double hash symbol (//) or the pound symbol (#). Once the code is commented, it will be highlighted in a different color to identify it as unreadable. The advantage of using a PHP multi-line comment is that it is easy to read and understand, even for non-programmers. It can also be easier to manage and update, and it can help to prevent errors caused by misinterpreting code. You can also use a multi-line comment to test out new functions without actually changing the live code in your site. This is a great way to save time when working with an existing piece of code and see how it works before making any changes. You can then simply remove the comment when you’re finished. This is also useful when trying out a new algorithm, as you can rerun the script without affecting any live data. Finally, comments can be very useful when debugging a program, as you can comment out the part of the code that is causing an issue and rerun it without any problems.