# Adding Comments

PDT allows you to quickly and easily comment and uncomment code by selecting a line or a block of text and tagging it as a comment.

Comments can be added to single lines of code (Ctrl + /) or blocks of code (Ctrl + Shift + /).

In addition, special PHPDocBlock comments can also be added. See "Adding PHP DocBlock Comments" for more information.

The following procedures describe how to comment and uncomment lines and blocks of code.

To comment a line:

1. Place the cursor anywhere on the required line of code.
2. Press Ctrl + / Two slashes "//" will be added to the front of the line, causing it to be recognized as a comment.

To comment more than one line:

1. Select all the lines that you would like to be commented.
2. Press Ctrl + / Two slashes "//" will be added to the front of each line, causing them to be recognized as a comment.

To uncomment a line / lines:

1. Select the required line(s).
2. Press Ctrl + / The commenting formatting will be removed from the code.

To comment a block:

1. Select the required block of code.
2. Press Ctrl + Shift + / The beginning (/) and ending (/) characters will be added in the appropriate places in order to mark the selected block as a comment.

#### Related Links:

- Commenting Code
- phpDoc Comments
- Commenting PHP DocBlocks