#43400 [NEW]: Deflate filter doesn't compress all data

From: witekfl at poczta dot onet dot pl Operating system: Linux PHP version: 5.2.5 PHP Bug Type: Filter related Bug description: Deflate filter doesn't compress all data Description: ------------ The deflate filter doesn't compress all data. The decompressed data is 1721662 bytes long. Reproduce code: --------------- <?php $f = fopen("http://republika.pl/rkd/data.bz2", "rb"); $data = ''; while (!feof($f)) { $data .= fread($f, 32768); } fclose($f); $text = bzdecompress($data); $f3 = fopen("data.html.deflate", "wb"); stream_filter_append($f3, 'zlib.deflate', STREAM_FILTER_WRITE); fwrite($f3, $text); fclose($f3); $f5 = fopen("data.html.deflate", "rb"); stream_filter_append($f5, 'zlib.inflate', STREAM_FILTER_READ); $text_deflate = ''; while (!feof($f5)) { $text_deflate .= fread($f5, 32768); } fclose($f5); printf("original = %d, deflate = %d\n", strlen($text), strlen($text_deflate)); ?> Expected result: ---------------- original = 1721662, deflate = 1721662 Actual result: -------------- original = 1721662, deflate = 546816 -- Edit bug report at http://bugs.php.net/?id=43400&edit=1 -- Try a CVS snapshot (PHP 4.4): http://bugs.php.net/fix.php?id=43400&r=trysnapshot44 Try a CVS snapshot (PHP 5.2): http://bugs.php.net/fix.php?id=43400&r=trysnapshot52 Try a CVS snapshot (PHP 5.3): http://bugs.php.net/fix.php?id=43400&r=trysnapshot53 Try a CVS snapshot (PHP 6.0): http://bugs.php.net/fix.php?id=43400&r=trysnapshot60 Fixed in CVS: http://bugs.php.net/fix.php?id=43400&r=fixedcvs Fixed in release: http://bugs.php.net/fix.php?id=43400&r=alreadyfixed Need backtrace: http://bugs.php.net/fix.php?id=43400&r=needtrace Need Reproduce Script: http://bugs.php.net/fix.php?id=43400&r=needscript Try newer version: http://bugs.php.net/fix.php?id=43400&r=oldversion Not developer issue: http://bugs.php.net/fix.php?id=43400&r=support Expected behavior: http://bugs.php.net/fix.php?id=43400&r=notwrong Not enough info: http://bugs.php.net/fix.php?id=43400&r=notenoughinfo Submitted twice: http://bugs.php.net/fix.php?id=43400&r=submittedtwice register_globals: http://bugs.php.net/fix.php?id=43400&r=globals PHP 3 support discontinued: http://bugs.php.net/fix.php?id=43400&r=php3 Daylight Savings: http://bugs.php.net/fix.php?id=43400&r=dst IIS Stability: http://bugs.php.net/fix.php?id=43400&r=isapi Install GNU Sed: http://bugs.php.net/fix.php?id=43400&r=gnused Floating point limitations: http://bugs.php.net/fix.php?id=43400&r=float No Zend Extensions: http://bugs.php.net/fix.php?id=43400&r=nozend MySQL Configuration Error: http://bugs.php.net/fix.php?id=43400&r=mysqlcfg