Hi Rob,
seems like PHP is comparing the values:
<?php
class Tst {
}
$obj1 = new Tst();
$obj2 = $obj1;
$obj1->a = "a";
$obj2->a = "a";
echo "Test 1: " . ($obj1 == $obj2 ? 'equal' : 'not equal') . "\n";
$obj1->a = "a";
$obj2->a = "b";
echo "Test 2: " . ($obj1 == $obj2 ? 'equal' : 'not equal') . "\n";
$obj1 = & new Tst();
$obj2 = & $obj1;
echo "Test 3: " . ($obj1 == $obj2 ? 'equal' : 'not equal') . "\n";
?>
Output (with PHP 4.2.3):
Test 1: equal
Test 2: not equal
Test 3: equal
> -----Original Message-----
> From: Rob [mailto:rcherry@jamwarehouse.com]
> Sent: Thursday, January 16, 2003 11:14 AM
> To: phpobj
> Subject: [php-objects] Object comparison in php
>
>
> If I have two object in php, how does the == operator work?
>
> E.g.
>
> $obj1 = new Object();
> $obj2 = $obj1
>
> what is the result of ($obj1 == $obj2)?
>
> What about this?
>
> $obj1 = & new Object();
> $obj2 = & $obj1
>
> what is the result of ($obj1 == $obj2)?
>
> Does the == operator do a memory location comparison for objects, or does
> it actually comare the values within the object?
>
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