#26247 [NEW]: Problem with serialize function

From: sgarrouste at agencecap dot net Operating system: Linux Suze PHP version: 4.3.3 PHP Bug Type: Unknown/Other Function Bug description: Problem with serialize function Description: ------------ Hello I have un bug with the function serialize. I need to serialize object for testing if they not changed. The bug appear when i serialize type is double but disappear when i unzerialize. i explain this in the reproduce code. i think it's a problem of approximation. thank for the answer. ps: my english is not very good, excuse me Reproduce code: --------------- <?php $test = 13.1; echo "test = ".$test."<br>"; $test2 = serialize($test); echo "test2(serialize) = ".$test2."<br>"; echo "test2(unserialize) = ".unserialize($test2); ?> Expected result: ---------------- test = 13.1 test2(serialize) = d:13.1; test2(unserialize) = 13.1 Actual result: -------------- test = 13.1 test2(serialize) = d:13.0999999999999996447286321199499070644378662109375; test2(unserialize) = 13.1 -- Edit bug report at http://bugs.php.net/?id=26247&edit=1 -- Try a CVS snapshot (php4): http://bugs.php.net/fix.php?id=26247&r=trysnapshot4 Try a CVS snapshot (php5): http://bugs.php.net/fix.php?id=26247&r=trysnapshot5 Fixed in CVS: http://bugs.php.net/fix.php?id=26247&r=fixedcvs Fixed in release: http://bugs.php.net/fix.php?id=26247&r=alreadyfixed Need backtrace: http://bugs.php.net/fix.php?id=26247&r=needtrace Try newer version: http://bugs.php.net/fix.php?id=26247&r=oldversion Not developer issue: http://bugs.php.net/fix.php?id=26247&r=support Expected behavior: http://bugs.php.net/fix.php?id=26247&r=notwrong Not enough info: http://bugs.php.net/fix.php?id=26247&r=notenoughinfo Submitted twice: http://bugs.php.net/fix.php?id=26247&r=submittedtwice register_globals: http://bugs.php.net/fix.php?id=26247&r=globals PHP 3 support discontinued: http://bugs.php.net/fix.php?id=26247&r=php3 Daylight Savings: http://bugs.php.net/fix.php?id=26247&r=dst IIS Stability: http://bugs.php.net/fix.php?id=26247&r=isapi Install GNU Sed: http://bugs.php.net/fix.php?id=26247&r=gnused Floating point limitations: http://bugs.php.net/fix.php?id=26247&r=float