Bug #73955 [NEW]: array_search returns null

From: 171933346 at qq dot com Operating system: mac PHP version: 5.6.29 Package: *General Issues Bug Type: Bug Bug description:array_search returns null Description: ------------ array_search($value,$arr); the returns of this function is not expected。it displays false or the key from doc. but I get false、null、key。 php -version : 5.6.10 Test script: --------------- $arr = null; $key = array_search(2, $arr); if( $key === false) echo 'no value'; else echo 'the key is '.$key; -- Edit bug report at https://bugs.php.net/bug.php?id=73955&edit=1 -- Try a snapshot (PHP 5.4): https://bugs.php.net/fix.php?id=73955&r=trysnapshot54 Try a snapshot (PHP 5.5): https://bugs.php.net/fix.php?id=73955&r=trysnapshot55 Try a snapshot (trunk): https://bugs.php.net/fix.php?id=73955&r=trysnapshottrunk Fixed in SVN: https://bugs.php.net/fix.php?id=73955&r=fixed Fixed in release: https://bugs.php.net/fix.php?id=73955&r=alreadyfixed Need backtrace: https://bugs.php.net/fix.php?id=73955&r=needtrace Need Reproduce Script: https://bugs.php.net/fix.php?id=73955&r=needscript Try newer version: https://bugs.php.net/fix.php?id=73955&r=oldversion Not developer issue: https://bugs.php.net/fix.php?id=73955&r=support Expected behavior: https://bugs.php.net/fix.php?id=73955&r=notwrong Not enough info: https://bugs.php.net/fix.php?id=73955&r=notenoughinfo Submitted twice: https://bugs.php.net/fix.php?id=73955&r=submittedtwice register_globals: https://bugs.php.net/fix.php?id=73955&r=globals PHP 4 support discontinued: https://bugs.php.net/fix.php?id=73955&r=php4 Daylight Savings: https://bugs.php.net/fix.php?id=73955&r=dst IIS Stability: https://bugs.php.net/fix.php?id=73955&r=isapi Install GNU Sed: https://bugs.php.net/fix.php?id=73955&r=gnused Floating point limitations: https://bugs.php.net/fix.php?id=73955&r=float No Zend Extensions: https://bugs.php.net/fix.php?id=73955&r=nozend MySQL Configuration Error: https://bugs.php.net/fix.php?id=73955&r=mysqlcfg