Bug #73636 [NEW]: imagepng quietly produces jumbled output

From: jindra12 dot underdark at gmail dot com Operating system: Linux Mint PHP version: 7.1.0RC6 Package: GD related Bug Type: Bug Bug description:imagepng quietly produces jumbled output Description: ------------ --- From manual page: http://www.php.net/function.imagepng --- When loaded through function imagecreatefrompng and immediately saved in imagepng, some images produce jumbled results. These results can be replicated, however, when put through more functions from gd library, bug dissapears. Would append the image, however, since it is not mine I'm not sure. Test script: --------------- $image = imagecreatefrompng($_FILES["original_image"]["tmp_name"]); imagepng($image, $filepath); -- Edit bug report at https://bugs.php.net/bug.php?id=73636&edit=1 -- Try a snapshot (PHP 5.4): https://bugs.php.net/fix.php?id=73636&r=trysnapshot54 Try a snapshot (PHP 5.5): https://bugs.php.net/fix.php?id=73636&r=trysnapshot55 Try a snapshot (trunk): https://bugs.php.net/fix.php?id=73636&r=trysnapshottrunk Fixed in SVN: https://bugs.php.net/fix.php?id=73636&r=fixed Fixed in release: https://bugs.php.net/fix.php?id=73636&r=alreadyfixed Need backtrace: https://bugs.php.net/fix.php?id=73636&r=needtrace Need Reproduce Script: https://bugs.php.net/fix.php?id=73636&r=needscript Try newer version: https://bugs.php.net/fix.php?id=73636&r=oldversion Not developer issue: https://bugs.php.net/fix.php?id=73636&r=support Expected behavior: https://bugs.php.net/fix.php?id=73636&r=notwrong Not enough info: https://bugs.php.net/fix.php?id=73636&r=notenoughinfo Submitted twice: https://bugs.php.net/fix.php?id=73636&r=submittedtwice register_globals: https://bugs.php.net/fix.php?id=73636&r=globals PHP 4 support discontinued: https://bugs.php.net/fix.php?id=73636&r=php4 Daylight Savings: https://bugs.php.net/fix.php?id=73636&r=dst IIS Stability: https://bugs.php.net/fix.php?id=73636&r=isapi Install GNU Sed: https://bugs.php.net/fix.php?id=73636&r=gnused Floating point limitations: https://bugs.php.net/fix.php?id=73636&r=float No Zend Extensions: https://bugs.php.net/fix.php?id=73636&r=nozend MySQL Configuration Error: https://bugs.php.net/fix.php?id=73636&r=mysqlcfg