Help with Sendmail.php

I have my sendmail.php working properly, I am wanting to know if there is a way to set conditions.

Example: In my form I have a line called, 'color'. So in sendmail $color is used to grab the 'color' field in the form. To help distinguish what data is shown in the email I have added lables to them.

Name = $name
Color = $color
Type = $type
etc..

Well If someone does not fill out the 'color' field in the form is there a way to comment out the line completely so that way I am not left with just a blank line

Color = (nothing)

I would rather see
Name = $name
Type = $type
etc...

 

You can test the variables first if they are empty. Example:

$msg = '';
if($name) $msg .= 'Name : ' . $name;
if($color) $msg .= 'Color : ' . $color;
...
...

and so on.

 

fairuz.ismail is right but it's better to use isset function rather than test the variable in the if statement..

$msg = '';
if(isset($_REQUEST['name'])) $msg .= 'Name : ' . $_REQUEST['name'];
if(isset($_REQUEST['color'])) $msg .= 'Color : ' . $_REQUEST['color'];
if(isset($_REQUEST['type'])) $msg .= 'Type: ' . $_REQUEST['type'];

PHP:

 

When I use isset i get this error:

Parse error: syntax error, unexpected T_ENCAPSED_AND_WHITESPACE, expecting T_STRING or T_VARIABLE or T_NUM_STRING in /website/form/sendmail.php on line 25:

line 25:

 

When I use:

I get;

The First line shows the information used in the form.
The Second line shows it empty because nothing was in the form.