Bug #61287 [NEW]: A particular string fails to decompress

From: Operating system: Windows PHP version: 5.4.0 Package: Zlib related Bug Type: Bug Bug description:A particular string fails to decompress Description: ------------ We use gzdeflate to compress search parameters. When we recently upgraded from 5.3.8 to 5.4, a slew of error messages appeared. See the test script below. We've tried to minimize it, but any changes do not cause the error to trigger. Changing the variable name "region_id" to "egion_id" results in 90. Changing the variable name "region_id" to "tegion_id" causes the same error. Changing the variable name "discipline" to "isciplined" results in 92. Changing the value assigned to region_id from 1 to 2 results in 92. Changing the value assigned to region_id from 1 to 4 results in an error. Test script: --------------- $array = array( 'region_id' => 1, 'discipline' => 23, 'degrees' => array(), 'country_id' => 27 ); $serialized = serialize($array); $deflated = gzdeflate($serialized, 9); $inflated = gzinflate($deflated); echo strlen($inflated); Expected result: ---------------- Expected: 92 Actual result: -------------- Warning: gzinflate(): data error in D:\Web\Projects\Bench\index.php on line 13 0 -- Edit bug report at https://bugs.php.net/bug.php?id=61287&edit=1 -- Try a snapshot (PHP 5.4): https://bugs.php.net/fix.php?id=61287&r=trysnapshot54 Try a snapshot (PHP 5.3): https://bugs.php.net/fix.php?id=61287&r=trysnapshot53 Try a snapshot (trunk): https://bugs.php.net/fix.php?id=61287&r=trysnapshottrunk Fixed in SVN: https://bugs.php.net/fix.php?id=61287&r=fixed Fixed in SVN and need be documented: https://bugs.php.net/fix.php?id=61287&r=needdocs Fixed in release: https://bugs.php.net/fix.php?id=61287&r=alreadyfixed Need backtrace: https://bugs.php.net/fix.php?id=61287&r=needtrace Need Reproduce Script: https://bugs.php.net/fix.php?id=61287&r=needscript Try newer version: https://bugs.php.net/fix.php?id=61287&r=oldversion Not developer issue: https://bugs.php.net/fix.php?id=61287&r=support Expected behavior: https://bugs.php.net/fix.php?id=61287&r=notwrong Not enough info: https://bugs.php.net/fix.php?id=61287&r=notenoughinfo Submitted twice: https://bugs.php.net/fix.php?id=61287&r=submittedtwice register_globals: https://bugs.php.net/fix.php?id=61287&r=globals PHP 4 support discontinued: https://bugs.php.net/fix.php?id=61287&r=php4 Daylight Savings: https://bugs.php.net/fix.php?id=61287&r=dst IIS Stability: https://bugs.php.net/fix.php?id=61287&r=isapi Install GNU Sed: https://bugs.php.net/fix.php?id=61287&r=gnused Floating point limitations: https://bugs.php.net/fix.php?id=61287&r=float No Zend Extensions: https://bugs.php.net/fix.php?id=61287&r=nozend MySQL Configuration Error: https://bugs.php.net/fix.php?id=61287&r=mysqlcfg