#20932 [Opn->Bgs]: Class without member variables gives "empty"/"null" objects

[sniper]

 ID:               20932
 Updated by:       [EMAIL PROTECTED]
 Reported By:      [EMAIL PROTECTED]
-Status:           Open
+Status:           Bogus
 Bug Type:         Class/Object related
 Operating System: Windows XP
 PHP Version:      4.2.3
 New Comment:

Thank you for taking the time to write to us, but this is not
a bug. Please double-check the documentation available at
http://www.php.net/manual/ and the instructions on how to report
a bug at http://bugs.php.net/how-to-report.php


Previous Comments:
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[2002-12-11 04:47:43] [EMAIL PROTECTED]

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? ;)


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Edit this bug report at http://bugs.php.net/?id=20932&edit=1