note 85213 rejected from language.oop5.references by thiago
| From: | thiago@php.net | Date: | Wed, 20 Aug 2008 19:10:13 +0000 |
| Subject: | note 85213 rejected from language.oop5.references by thiago | ||
| References: | 1 | Groups: | php.notes |
| Request: | Send a blank email to php-notes+get-143685@lists.php.net to get a copy of this message | ||
Note Submitter: couchand at gmail dot com
----
The above doesn't really make this clear, but the following:
<?php
class A {
public $foo = 1;
}
$a = new A;
$b = $a; // $a and $b are copies of the same identifier
// ($a) = ($b) = <id>
$c = &$a; // $c is a reference to $a
$c->foo = 2;
$a = NULL; // the object persists after the demise of $a
echo "a: ".$a->foo."\n";
echo "b: ".$b->foo."\n";
echo "c: ".$c->foo."\n";
?>
Outputs:
a:
b: 2
c: