--TEST-- png compression test --SKIPIF-- <?php if (!extension_loaded('gd')) { die("skip gd extension not available."); } if (!function_exists("imagecreatefrompng") || !function_exists("imagepng")) { die("skip png support unavailable"); } ?> --FILE-- <?php $cwd = dirname(__FILE__); echo "PNG compression test: "; $im = imagecreatetruecolor(20,20); imagefilledrectangle($im, 5,5, 10,10, 0xffffff); imagepng($im, $cwd . '/test_pngcomp.png', 9); $im2 = imagecreatefrompng($cwd . '/test_pngcomp.png'); $col = imagecolorat($im2, 8,8); if ($col == 0xffffff) { echo "ok\n"; } @unlink($cwd . "/test_pngcomp.png"); ?> --EXPECT-- PNG compression test: ok