Bug #77080 [NEW]: Defalate not working

From: huisman at comandi dot nl Operating system: Ubuntu 18.04.1 LTS PHP version: 7.2Git-2018-10-29 (Git) Package: Zlib related Bug Type: Bug Bug description:Defalate not working Description: ------------ stream_filter_append in combination with zlib.deflate no longer works as expected in PHP 7.2 and produces an empty string instead of the expected compressed string. (see test script). Test script: --------------- <?php $stream = fopen('php://temp', 'w+'); fwrite($stream, 'something something'); stream_filter_append($stream, 'zlib.deflate', STREAM_FILTER_READ, ['level' => 6]); rewind($stream); $contents = fread($stream, 1024); Expected result: ---------------- A compressed string Actual result: -------------- An empty string -- Edit bug report at https://bugs.php.net/bug.php?id=77080&edit=1 -- Try a snapshot (PHP 5.4): https://bugs.php.net/fix.php?id=77080&r=trysnapshot54 Try a snapshot (PHP 5.5): https://bugs.php.net/fix.php?id=77080&r=trysnapshot55 Try a snapshot (trunk): https://bugs.php.net/fix.php?id=77080&r=trysnapshottrunk Fixed in SVN: https://bugs.php.net/fix.php?id=77080&r=fixed Fixed in release: https://bugs.php.net/fix.php?id=77080&r=alreadyfixed Need backtrace: https://bugs.php.net/fix.php?id=77080&r=needtrace Need Reproduce Script: https://bugs.php.net/fix.php?id=77080&r=needscript Try newer version: https://bugs.php.net/fix.php?id=77080&r=oldversion Not developer issue: https://bugs.php.net/fix.php?id=77080&r=support Expected behavior: https://bugs.php.net/fix.php?id=77080&r=notwrong Not enough info: https://bugs.php.net/fix.php?id=77080&r=notenoughinfo Submitted twice: https://bugs.php.net/fix.php?id=77080&r=submittedtwice register_globals: https://bugs.php.net/fix.php?id=77080&r=globals PHP 4 support discontinued: https://bugs.php.net/fix.php?id=77080&r=php4 Daylight Savings: https://bugs.php.net/fix.php?id=77080&r=dst IIS Stability: https://bugs.php.net/fix.php?id=77080&r=isapi Install GNU Sed: https://bugs.php.net/fix.php?id=77080&r=gnused Floating point limitations: https://bugs.php.net/fix.php?id=77080&r=float No Zend Extensions: https://bugs.php.net/fix.php?id=77080&r=nozend MySQL Configuration Error: https://bugs.php.net/fix.php?id=77080&r=mysqlcfg