1--TEST-- 2png compression test 3--SKIPIF-- 4<?php 5 if (!extension_loaded('gd')) { 6 die("skip gd extension not available."); 7 } 8 9 if (!function_exists("imagecreatefrompng") || !function_exists("imagepng")) { 10 die("skip png support unavailable"); 11 } 12?> 13--FILE-- 14<?php 15 $cwd = dirname(__FILE__); 16 17 echo "PNG compression test: "; 18 19 $im = imagecreatetruecolor(20,20); 20 imagefilledrectangle($im, 5,5, 10,10, 0xffffff); 21 imagepng($im, $cwd . '/test_pngcomp.png', 9); 22 23 $im2 = imagecreatefrompng($cwd . '/test_pngcomp.png'); 24 $col = imagecolorat($im2, 8,8); 25 if ($col == 0xffffff) { 26 echo "ok\n"; 27 } 28 29 @unlink($cwd . "/test_pngcomp.png"); 30?> 31--EXPECT-- 32PNG compression test: ok 33
