Using & before a variable

From: Date: Fri, 03 Sep 2004 09:41:55 +0000
Subject: Using & before a variable
Groups: php.general 
Request: Send a blank email to php-general+get-195706@lists.php.net to get a copy of this message
Hi, I have noticed that some of the functions in a tutorial I am studying have an & in the variable parameters i.e. function add(&$id) { /* function body */ } I would be most grateful if some can shed some light on this as i cant fnd any reference to this in the PHP manual... Thanks

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