Bug #75776 [NEW]: compression filters on stdout not working any more

From: shestero at meta dot ua Operating system: Debian PHP version: 7.0.27 Package: *Compression related Bug Type: Bug Bug description:compression filters on stdout not working any more Description: ------------ I used this way to produce compressed output for years but now it return zero-output without any errors anywhere. Registered Stream Filters: zlib.*, bzip2.*, convert.iconv.*, mcrypt.*, mdecrypt.*, string.rot13, string.toupper, string.tolower, string.strip_tags, convert.*, consumed, dechunk My configure parameters: './configure' '--with-openssl' '--with-ssl=/usr/bin/openssl' '--with-ssl-lib=/usr/lib/x86_64-linux-gnu' '--with-libdir=lib/x86_64-linux-gnu' '--with-bz2' '--enable-exif' '--with-gd' '--with-mcrypt' '--with-mysql' '--with-mysql-sock' '--enable-sockets' '--enable-zip' '--with-apxs2=/usr/bin/apxs2' '--with-config-file-path=/var/lib/apache2/conf' '--with-jpeg-dir' '--enable-gd-native-ttf' '--with-xmlrpc' '--with-freetype-dir' '--with-zlib' '--with-zlib-dir' '--enable-maintainer-zts' '--with-tsrm-pthreads' '--with-mysqli' '--enable-mbstring' '--with-pdo-mysql=mysqlnd' '--with-mysqli=mysqlnd' '--with-curl' '--enable-memcache' PS Output mute as I adding compression filters. string.toupper and string.tolower work! Test script: --------------- error_reporting(E_ALL); ini_set("display_errors", 1); if (true) { header("Content-Description: File Transfer"); header("Content-Disposition: attachment; filename=main.csv.bz2"); header("Content-Type: application/x-bzip2"); header("Content-Transfer-Encoding: binary"); } else { header("Content-Type: application/csv"); header("Content-Disposition: attachment;Filename=main.csv"); } $bz = fopen('php://output', 'w'); fwrite($bz,"sdfgdfg"); // output such way ... fflush($bz); fclose($bz); stream_filter_append($bz, 'convert.iconv.UTF-8/CP1251//TRANSLIT'); // ok if (true) { $param = array('blocks' => 6, 'work' => 0); // for bzip2 $ok = stream_filter_append($bz, 'bzip2.compress', STREAM_FILTER_WRITE, $param); // $param = array('level' => 6, 'window' => 15, 'memory' => 9); // for gzip //$ok = stream_filter_append($bz, 'zlib.deflate');//, STREAM_FILTER_WRITE, $param); if ($ok===false) { die("Cannot stream_filter_append( 'bzip2.compress' ) !"); } } Expected result: ---------------- error or some output as usual Actual result: -------------- browser saves zero-size file. -- Edit bug report at https://bugs.php.net/bug.php?id=75776&edit=1 -- Try a snapshot (PHP 5.4): https://bugs.php.net/fix.php?id=75776&r=trysnapshot54 Try a snapshot (PHP 5.5): https://bugs.php.net/fix.php?id=75776&r=trysnapshot55 Try a snapshot (trunk): https://bugs.php.net/fix.php?id=75776&r=trysnapshottrunk Fixed in SVN: https://bugs.php.net/fix.php?id=75776&r=fixed Fixed in release: https://bugs.php.net/fix.php?id=75776&r=alreadyfixed Need backtrace: https://bugs.php.net/fix.php?id=75776&r=needtrace Need Reproduce Script: https://bugs.php.net/fix.php?id=75776&r=needscript Try newer version: https://bugs.php.net/fix.php?id=75776&r=oldversion Not developer issue: https://bugs.php.net/fix.php?id=75776&r=support Expected behavior: https://bugs.php.net/fix.php?id=75776&r=notwrong Not enough info: https://bugs.php.net/fix.php?id=75776&r=notenoughinfo Submitted twice: https://bugs.php.net/fix.php?id=75776&r=submittedtwice register_globals: https://bugs.php.net/fix.php?id=75776&r=globals PHP 4 support discontinued: https://bugs.php.net/fix.php?id=75776&r=php4 Daylight Savings: https://bugs.php.net/fix.php?id=75776&r=dst IIS Stability: https://bugs.php.net/fix.php?id=75776&r=isapi Install GNU Sed: https://bugs.php.net/fix.php?id=75776&r=gnused Floating point limitations: https://bugs.php.net/fix.php?id=75776&r=float No Zend Extensions: https://bugs.php.net/fix.php?id=75776&r=nozend MySQL Configuration Error: https://bugs.php.net/fix.php?id=75776&r=mysqlcfg