note 68109 added to language.references.unset

Here's an example of unsetting a reference without losing an ealier set reference <?php $foo = 'Bob'; // Assign the value 'Bob' to $foo $bar = &$foo; // Reference $foo via $bar. $bar = "My name is $bar"; // Alter $bar... echo $bar; echo $foo; // $foo is altered too. $foo = "I am Frank"; // Alter $foo and $bar because of the reference echo $bar; // output: I am Frank echo $foo; // output: I am Frank $foobar = &$bar; // create a new reference between $foobar and $bar $foobar = "hello $foobar"; // alter $foobar and with that $bar and $foo echo $foobar; //output : hello I am Frank unset($bar); // unset $bar and destroy the reference $bar = "dude!"; // assign $bar /* even though the reference between $bar and $foo is destroyed, and also the reference between $bar and $foobar is destroyed, there is still a reference between $foo and $foobar. */ echo $foo; // output : hello I am Frank echo $bar; // output : due! ?> ---- Server IP: 194.109.193.119 Probable Submitter: 62.58.41.165 ---- X-Spam-Status: No, hits=3.1 required=5.0 tests=DATE_MISSING,FROM_NO_LOWER autolearn=no version=2.64 ---- Manual Page -- http://www.php.net/manual/en/language.references.unset.php Edit -- http://master.php.net/note/edit/68109 Del: integrated -- http://master.php.net/note/delete/68109/integrated Del: useless -- http://master.php.net/note/delete/68109/useless Del: bad code -- http://master.php.net/note/delete/68109/bad+code Del: spam -- http://master.php.net/note/delete/68109/spam Del: non-english -- http://master.php.net/note/delete/68109/non-english Del: in docs -- http://master.php.net/note/delete/68109/in+docs Del: other reasons-- http://master.php.net/note/delete/68109 Reject -- http://master.php.net/note/reject/68109 Search -- http://master.php.net/manage/user-notes.php