How to add comments in PHP

PHP: How to add comments in PHP

Comments are parts of the code that don't really do anything (some exceptions) apart from be read by humans.

There are a few ways to add comments in PHP.

1: // - single line comments

  1. <?php
  2.         echo 'hello';
  3.         // this is a comment
  4.         echo 'world';

2: # - single line comments

  1. <?php
  2.         echo 'hello';
  3.         # this is a comment
  4.        echo 'world';

3: /* ... */ - multi line comments

  1. <?php
  2.         echo 'hello';
  3.         /* this is a comment
  4.         echo 'world';
  6.         */
  7.         echo 'the end';

The only times that comments have any effect on the code that is processed is when some scripts scan 'DocComment'. A DocComment is one that starts like this /** ... */.

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