PHP is probably the most popular scripting language on the web, PHP is a server side script that is interpreted on the server. Actually, both are correct. The Formatter PHP online was created to help with debugging. Comments can be used to: Let others understand your code. The first is by using // to comment out a line. This is Simple PHP Comment System in PHP & MySQL. Then we will work inserting comments through comment form. However, I try to keep things consistent in my code that way it's easy for the next person to read. Its only purpose is to be read by someone who is looking at the code.If you want to report an error, or if you want to make a suggestion, do not hesitate to send us an e-mail: Once a comment is opened, *everything* is ignored until the end of the comment (or the end of the php block) is reached. Comments in PHP can be used for several purposes, a very interesting one being that you can generate API documentation directly from them by using PHPDocumentor ( Notes can come in all sorts of shapes and sizes. PHP supports 'C', 'C++' and Unix shell-style (Perl style) comments. There are several ways to add a comment in PHP code. the line or the current block of PHP code, whichever comes first. It is worth mentioning that, HTML comments have no meaning in PHP parser. So something like this might help...//====================================================================== Examples might be simplified to improve reading and basic understanding. A comment in PHP code is a line that is not executed as a part of the program. First of all, we are going to create comments database table. It gives the PHP code proper indentation with spaces or tabs. Also see: Learn Coding Online. All these tasks, although rather repetitive, require lots of time and attention, especially if you care about best practices relating to design and security.

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the ?> in //?> is not treated as commented text, this is a result of having to handle code on one line such as program. A nice way to toggle the commenting of blocks of code can be done by mixing the two comment styles: About PHP Formatter tool. The "one-line" comment styles only comment to the end of Tutorials, references, and examples are constantly reviewed to avoid errors, but we cannot warrant full correctness of all content. W3Schools is optimized for learning, testing, and training. Its only purpose is to be read by someone who is looking at the code. The beautifier can understand and format source code of all the popular languages including JavaScript, HTML, XML, CSS, and PHP. it's perhaps not obvious to some, but the following code will cause a parse error! A comment in PHP code is a line that is not executed as a part of the If you are using editor with code highlight, it’s much easier to notice error like /* */ */. MSpreij (8-May-2005) says  /* .. */ overrides //  This means that HTML code after Beautifier uses the open-source Code Mirror project to auto-format and intend the source code while the web app is built on Twitter BootStrap framework. Be careful when commenting out regular expressions. "This code is included since we are testing version 3" It also supports various indentation styles such as K&R style, Allman style, Whitesmiths style and GNU style. For example: This one-line comment style only comments to the end of the line or the current code block, whichever comes first. This tool allows you to solve the problem by formatting PHP code so … a trick I have used in all languages to temporarily block out large sections (usually for test/debug/new-feature purposes), is to set (or define) a var at the top, and use that to conditionally comment the blocks; an added benefit over if(0) (samuli's comment from nov'05) is that u can have several versions or tests running at once, and u dont require cleanup later if u want to keep the blocks in:  just reset the var.