Bug #61540 [NEW]: array_diff has problem when in second array is entry with null value

From: Operating system: ubuntu PHP version: 5.3.10 Package: Scripting Engine problem Bug Type: Bug Bug description:array_diff has problem when in second array is entry with null value Description: ------------ I notice that array_diff return empty array when in second array we have entry with null value. When i removed entry with test key - everything works fine. Moreover it seems that null values in $a array don't brake array_diff Test script: --------------- $a = array('street'=>'','number'=>'n1'); $b = array('street'=>'b1','number'=>'n1','test'=>null); var_dump(array_diff($a,$b)); Expected result: ---------------- array(1) { ["street"]=> string(0) "" } Actual result: -------------- array(0) { } -- Edit bug report at https://bugs.php.net/bug.php?id=61540&edit=1 -- Try a snapshot (PHP 5.4): https://bugs.php.net/fix.php?id=61540&r=trysnapshot54 Try a snapshot (PHP 5.3): https://bugs.php.net/fix.php?id=61540&r=trysnapshot53 Try a snapshot (trunk): https://bugs.php.net/fix.php?id=61540&r=trysnapshottrunk Fixed in SVN: https://bugs.php.net/fix.php?id=61540&r=fixed Fixed in SVN and need be documented: https://bugs.php.net/fix.php?id=61540&r=needdocs Fixed in release: https://bugs.php.net/fix.php?id=61540&r=alreadyfixed Need backtrace: https://bugs.php.net/fix.php?id=61540&r=needtrace Need Reproduce Script: https://bugs.php.net/fix.php?id=61540&r=needscript Try newer version: https://bugs.php.net/fix.php?id=61540&r=oldversion Not developer issue: https://bugs.php.net/fix.php?id=61540&r=support Expected behavior: https://bugs.php.net/fix.php?id=61540&r=notwrong Not enough info: https://bugs.php.net/fix.php?id=61540&r=notenoughinfo Submitted twice: https://bugs.php.net/fix.php?id=61540&r=submittedtwice register_globals: https://bugs.php.net/fix.php?id=61540&r=globals PHP 4 support discontinued: https://bugs.php.net/fix.php?id=61540&r=php4 Daylight Savings: https://bugs.php.net/fix.php?id=61540&r=dst IIS Stability: https://bugs.php.net/fix.php?id=61540&r=isapi Install GNU Sed: https://bugs.php.net/fix.php?id=61540&r=gnused Floating point limitations: https://bugs.php.net/fix.php?id=61540&r=float No Zend Extensions: https://bugs.php.net/fix.php?id=61540&r=nozend MySQL Configuration Error: https://bugs.php.net/fix.php?id=61540&r=mysqlcfg