#25292 [NEW]: is_null(1) and comparison with null produce different results

From: dizza at students dot ru Operating system: FreeBSD 5.1 PHP version: 4.3.3 PHP Bug Type: Scripting Engine problem Bug description: is_null(1) and comparison with null produce different results Description: ------------ When calling is_null(1) for a varibale and compare it with null I get different result. Shouldn't it produce the same result? Reproduce code: --------------- $arr = array(); echo( is_null( $arr ) ? "is_null: NULL\n" : "is_null: NOT NULL\n" ); echo( (null == $arr) ? "null: NULL\n" : "null: NOT NULL\n" ); Expected result: ---------------- is_not: NOT NULL null: NULL -- Edit bug report at http://bugs.php.net/?id=25292&edit=1 -- Try a CVS snapshot (php4): http://bugs.php.net/fix.php?id=25292&r=trysnapshot4 Try a CVS snapshot (php5): http://bugs.php.net/fix.php?id=25292&r=trysnapshot5 Fixed in CVS: http://bugs.php.net/fix.php?id=25292&r=fixedcvs Fixed in release: http://bugs.php.net/fix.php?id=25292&r=alreadyfixed Need backtrace: http://bugs.php.net/fix.php?id=25292&r=needtrace Try newer version: http://bugs.php.net/fix.php?id=25292&r=oldversion Not developer issue: http://bugs.php.net/fix.php?id=25292&r=support Expected behavior: http://bugs.php.net/fix.php?id=25292&r=notwrong Not enough info: http://bugs.php.net/fix.php?id=25292&r=notenoughinfo Submitted twice: http://bugs.php.net/fix.php?id=25292&r=submittedtwice register_globals: http://bugs.php.net/fix.php?id=25292&r=globals PHP 3 support discontinued: http://bugs.php.net/fix.php?id=25292&r=php3 Daylight Savings: http://bugs.php.net/fix.php?id=25292&r=dst IIS Stability: http://bugs.php.net/fix.php?id=25292&r=isapi Install GNU Sed: http://bugs.php.net/fix.php?id=25292&r=gnused