note 74609 added to function.unset
| From: | markATEcrushtodcom at osu1 dot php dot net | Date: | Thu, 19 Apr 2007 21:13:50 +0000 |
| Subject: | note 74609 added to function.unset | ||
| Groups: | php.notes | ||
| Request: | Send a blank email to php-notes+get-125578@lists.php.net to get a copy of this message | ||
well perhaps you cannot unset() a referenced variable like...
<?php
function foo(&$bar)
{
unset($bar);
$bar = "blah";
}
$bar = 'something';
echo "$bar\n";
foo($bar);
echo "$bar\n";
?>
Output
something something
...but you can like this...
<?php
function foo(&$bar)
{
unset($$bar); <- dereference the var
$bar = "blah";
}
$bar = 'something';
echo "$bar\n";
foo($bar);
echo "$bar\n";
?>
Output
something bar
food for thought...
- mark
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