1--TEST-- 2png compression test 3--EXTENSIONS-- 4gd 5--SKIPIF-- 6<?php 7 if (!function_exists("imagecreatefrompng") || !function_exists("imagepng")) { 8 die("skip png support unavailable"); 9 } 10?> 11--FILE-- 12<?php 13 $cwd = __DIR__; 14 15 16 $im = imagecreatetruecolor(20,20); 17 imagefilledrectangle($im, 5,5, 10,10, 0xffffff); 18 try { 19 imagepng($im, $cwd . '/test_pngcomp.png', -2); 20 } catch (\ValueError $e) { 21 echo $e->getMessage() . PHP_EOL; 22 } 23 try { 24 imagepng($im, $cwd . '/test_pngcomp.png', 10); 25 } catch (\ValueError $e) { 26 echo $e->getMessage() . PHP_EOL; 27 } 28 echo "PNG compression test: "; 29 imagepng($im, $cwd . '/test_pngcomp.png', 9); 30 31 $im2 = imagecreatefrompng($cwd . '/test_pngcomp.png'); 32 $col = imagecolorat($im2, 8,8); 33 if ($col == 0xffffff) { 34 echo "ok\n"; 35 } 36 37 @unlink($cwd . "/test_pngcomp.png"); 38?> 39--EXPECT-- 40imagepng(): Argument #3 ($quality) must be between -1 and 9 41imagepng(): Argument #3 ($quality) must be between -1 and 9 42PNG compression test: ok 43
