Bug #71316 [Asn]: libpng warning from imagecreatefromstring

Edit report at https://bugs.php.net/bug.php?id=71316&edit=1 ID: 71316 Updated by: cmb@php.net Reported by: humbads at alum dot mit dot edu Summary: libpng warning from imagecreatefromstring Status: Assigned Type: Bug Package: GD related Operating System: FreeBSD 10.2 PHP Version: 5.6.17 Assigned To: pajoye Block user comment: N Private report: N New Comment: This appears to be a general libgd issue, so I've reported <https://github.com/libgd/libgd/issues/295> upstream. Previous Comments: ------------------------------------------------------------------------ [2016-07-17 21:57:38] michael dot hartmann at refx dot com PHP 7.0.8 x64 on Windows. Same problem. Please fix. ------------------------------------------------------------------------ [2016-01-10 01:48:05] pajoye@php.net Thanks for your report! Hm. This is a libpng warning.I suppose they move this warning to a simple warning level. I will see if we can implement the warning only callback without introducing too much noises: png_structp png_create_read_struct(png_const_charp user_png_ver, png_voidp error_ptr, png_error_ptr error_fn, png_error_ptr warn_fn); only png_error is used now and generates php error. ------------------------------------------------------------------------ [2016-01-08 22:27:13] humbads at alum dot mit dot edu A workaround is to run the following ImageMagick command on the PNG file before processing: mogrify -strip 1CCHOHSULGF78KW.png Source: http://stackoverflow.com/questions/22745076/libpng-warning-iccp-known-incorrect-srgb-profile ------------------------------------------------------------------------ [2016-01-08 22:07:27] humbads at alum dot mit dot edu Description: ------------ imagecreatefromstring is writing a warning message to stderr that can not be suppressed by '@' or captured by the error handler. It should emit a proper PHP warning instead. I have the following version of libPNG: php -i | grep -i libpng libPNG Version => 1.6.19+apng To run the test script, download the sample PNG image from here: http://imgbox.com/BzOXLiOr Note: libPNG 1.5.18 on PHP 5.6.17 for Windows does not have this problem. Test script: --------------- php -r '@var_dump(imagecreatefromstring(file_get_contents("1CCHOHSULGF78KW.png")));' Expected result: ---------------- resource(6) of type (gd) Actual result: -------------- libpng warning: iCCP: known incorrect sRGB profile resource(6) of type (gd) ------------------------------------------------------------------------ -- Edit this bug report at https://bugs.php.net/bug.php?id=71316&edit=1