001+ PNG compression test: libpng warning: Application built with libpng-1.5.13 but running with 1.6.3
001- PNG compression test: ok
002+
003+ Warning: imagepng(): gd-png error: cannot allocate libpng main struct in %s/pngcomp.php on line 8
004+
005+ Warning: imagecreatefrompng(): '/home/source/php-5.5.1/ext/gd/tests/test_pngcomp.png' is not a valid PNG file in %s/pngcomp.php on line 10
006+
007+ Warning: imagecolorat() expects parameter 1 to be resource, boolean given in %s/pngcomp.php on line 11