(PHP 4, PHP 5)
imagedestroy — Destroy an image
imagedestroy() frees any memory associated with image image .
An image resource, returned by one of the image creation functions, such as imagecreatetruecolor().
Returns TRUE on success or FALSE on failure.
Example #1 Using imagedestroy() example
<?php
// create a 100 x 100 image
$im = imagecreatetruecolor(100, 100);
// alter or save the image
// frees image from memory
imagedestroy($im);
?>