#20932 [NEW]: Class without member variables gives "empty"/"null" objects

From: richter@cyperfection.de Operating system: Windows XP PHP version: 4.2.3 PHP Bug Type: Class/Object related Bug description: Class without member variables gives "empty"/"null" objects take the following example: <?php class MethodsOnly { //var $dummy; function doSomething() { print("OBJ: doing something\n"); } }// class $OBJ = new MethodsOnly(); $OBJ->doSomething(); print("empty(OBJ): ".(empty($OBJ) ? "true" : "false")."\n"); print("OBJ == null: ".(($OBJ == null) ? "true" : "false")."\n"); print("OBJ === null: ".(($OBJ === null) ? "true" : "false")."\n"); ?> it gives the following output: OBJ: doing something empty(OBJ): true OBJ == null: true OBJ === null: false now, if you uncomment the $dummy member variable: OBJ: doing something empty(OBJ): false OBJ == null: false OBJ === null: false Sure, one should/could use "static calls" - like MethodsOnly::doSomething() - in this case (class without member vars), but we discovered this when migrating a project from PHP3 to PHP4 .. and, anyway, shouldn't an existing object behave the same wether it has member variables or not? ;) -- Edit bug report at http://bugs.php.net/?id=20932&edit=1 -- Try a CVS snapshot: http://bugs.php.net/fix.php?id=20932&r=trysnapshot Fixed in CVS: http://bugs.php.net/fix.php?id=20932&r=fixedcvs Fixed in release: http://bugs.php.net/fix.php?id=20932&r=alreadyfixed Need backtrace: http://bugs.php.net/fix.php?id=20932&r=needtrace Try newer version: http://bugs.php.net/fix.php?id=20932&r=oldversion Not developer issue: http://bugs.php.net/fix.php?id=20932&r=support Expected behavior: http://bugs.php.net/fix.php?id=20932&r=notwrong Not enough info: http://bugs.php.net/fix.php?id=20932&r=notenoughinfo Submitted twice: http://bugs.php.net/fix.php?id=20932&r=submittedtwice register_globals: http://bugs.php.net/fix.php?id=20932&r=globals PHP 3 support discontinued: http://bugs.php.net/fix.php?id=20932&r=php3 Daylight Savings: http://bugs.php.net/fix.php?id=20932&r=dst IIS Stability: http://bugs.php.net/fix.php?id=20932&r=isapi