De-allocate a color for an image
$image
$color
De-allocates a color previously allocated with imagecolorallocate or imagecolorallocatealpha.
image
An image resource, returned by one of the image creation functions, such as imagecreatetruecolor.
color
The color identifier.
Returns TRUE on success or FALSE on failure.
TRUE
FALSE
Example #1 Using imagecolordeallocate
<?php$white = imagecolorallocate($im, 255, 255, 255);imagecolordeallocate($im, $white);?>