PHP commented out the code there are several ways to do?

HP supports c,c++ and Unix Shell-style (Perl-style) annotations. For example:

<?php     echo  "This is a test";  This is a one-line C + + style comment         echo "This is  yet another test";    Echo  ' one Final Test ';  # This is a one-line shell-style comment?>

A single-line comment only comments to the end of the line or the current PHP code block, depending on which first appears. This means that in//...? > or # ...? The HTML code after > will be displayed:?> jump out of PHP mode and return to HTML mode,//or # does not affect this. If the asp_tags configuration option is enabled, the behavior is the same as//%> or #%>. However, the,</script> tag does not jump out of PHP mode in a single-line comment.

C-style annotations end when they hit the first */. Make sure that you do not nest C-style annotations. This error is easily encountered when trying to comment out a chunk of code.

<?php    */?>
There are two types of PHP comments:

Use double slash//This is to comment out a line of code such as

$message = ' abc ';
Use */* and/* This is a large paragraph of comments, such as

/* $today = ' tomorrow '; */