1--TEST-- 2Bug #72730: imagegammacorrect allows arbitrary write access 3--SKIPIF-- 4<?php 5if (!function_exists("imagecreatetruecolor")) die("skip"); 6?> 7--FILE-- 8<?php 9$img = imagecreatetruecolor(1, 1); 10imagegammacorrect($img, -1, 1337); 11?> 12DONE 13--EXPECTF-- 14Warning: imagegammacorrect(): Gamma values should be positive in %sbug72730.php on line %d 15DONE 16