note 50038 deleted from function.list by googleguy
| From: | googleguy@php.net | Date: | Thu, 13 Sep 2012 10:07:45 +0000 |
| Subject: | note 50038 deleted from function.list by googleguy | ||
| References: | 1 | Groups: | php.notes |
| Request: | Send a blank email to php-notes+get-190709@lists.php.net to get a copy of this message | ||
Note Submitter: mortoray at ecircle-ag dot com
----
There is no way to do reference assignment using the list function, therefore list assignment is
will always be a copy assignment (which is of course not always what you want).
By example, and showing the workaround (which is to just not use list):
function &pass_refs( &$a ) {
return array( &$a );
}
$a = 1;
list( $b ) = pass_refs( $a ); //*
$a = 2;
print( "$b" ); //prints 1
$ret = pass_refs( $a );
$b =& $ret[0];
$a = 3;
print( "$b" ); //prints 3
*This is where some syntax like the following would be desired:
list( &$b ) = pass_refs( $a );
or maybe:
list( $b ) =& pass_refs( $a );