Bug #77080 [Opn]: Deflate not working

Edit report at https://bugs.php.net/bug.php?id=77080&edit=1 ID: 77080 User updated by: huisman at comandi dot nl Reported by: huisman at comandi dot nl Summary: Deflate not working Status: Open Type: Bug Package: Zlib related Operating System: Ubuntu 18.04.1 LTS -PHP Version: 7.2Git-2018-10-29 (Git) +PHP Version: PHP 7.2.11 Block user comment: N Private report: N New Comment: Strange, ran on PHP 7.2.11-3+ubuntu18.04.1+deb.sury.org+1 (cli) (built: Oct 25 2018 06:44:08) ( NTS ) in a script it's working. The following zlib configuration is set: zlib ZLib Support => enabled Stream Wrapper => compress.zlib:// Stream Filter => zlib.inflate, zlib.deflate Compiled Version => 1.2.11 Linked Version => 1.2.11 Directive => Local Value => Master Value zlib.output_compression => Off => Off zlib.output_compression_level => -1 => -1 zlib.output_handler => no value => no value Previous Comments: ------------------------------------------------------------------------ [2018-10-29 22:39:53] cmb@php.net Works here: <https://3v4l.org/RRJ8b>. ------------------------------------------------------------------------ [2018-10-29 14:27:42] huisman at comandi dot nl 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 this bug report at https://bugs.php.net/bug.php?id=77080&edit=1