Edit report at https://bugs.php.net/bug.php?id=71316&edit=1
ID: 71316
Comment by: humbads at alum dot mit dot edu
Reported by: humbads at alum dot mit dot edu
Summary: libpng warning from imagecreatefromstring
Status: Open
Type: Bug
Package: GD related
Operating System: FreeBSD 10.2
PHP Version: 5.6.17
Block user comment: N
Private report: N
New Comment:
Here is a workaround for the "libpng warning: Interlace handling should be turned on when using
png_read_image" warnings emitted to stdout.
$command = "mogrify -interlace none *.png";
exec($command);
Call this prior to calling imagecreatefromstring.
Previous Comments:
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[2020-07-10 10:35:52] bugreports2 at gmail dot com
this just sucks wehn you verify that some file is really a png and get spewed by this messages (and
no fileinfo is useless given that many errors it makes over years)
libpng warning: Interlace handling should be turned on when using png_read_image
libpng warning: Interlace handling should be turned on when using png_read_image
libpng warning: Interlace handling should be turned on when using png_read_image
libpng warning: Interlace handling should be turned on when using png_read_image
libpng warning: Interlace handling should be turned on when using png_read_image
libpng warning: Interlace handling should be turned on when using png_read_image
libpng warning: Interlace handling should be turned on when using png_read_image
libpng warning: Interlace handling should be turned on when using png_read_image
libpng warning: Interlace handling should be turned on when using png_read_image
libpng warning: Interlace handling should be turned on when using png_read_image
libpng warning: Interlace handling should be turned on when using png_read_image
libpng warning: Interlace handling should be turned on when using png_read_image
libpng warning: Interlace handling should be turned on when using png_read_image
libpng warning: Interlace handling should be turned on when using png_read_image
libpng warning: Interlace handling should be turned on when using png_read_image
libpng warning: Interlace handling should be turned on when using png_read_image
libpng warning: iCCP: known incorrect sRGB profile
libpng warning: iCCP: CRC error
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[2018-07-13 09:29:00] divinity76 at gmail dot com
can't be captured with ob_start() either, does anybody have a workaround?
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[2018-07-13 08:31:00] divinity76+spam at gmail dot com
can reproduce on php 7.1.17 @ ubuntu 17.10 (aka i inconveniently encountered this bug)
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[2016-09-05 09:47:14] cmb@php.net
This appears to be a general libgd issue, so I've reported
<https://github.com/libgd/libgd/issues/295>
upstream.
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[2016-07-17 21:57:38] michael dot hartmann at refx dot com
PHP 7.0.8 x64 on Windows. Same problem. Please fix.
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