function and interface in parameter list?

From: Date: Tue, 01 Feb 2005 14:34:00 +0000
Subject: function and interface in parameter list?
Groups: php.general 
Request: Send a blank email to php-general+get-207830@lists.php.net to get a copy of this message
Hi I found a function declaration in an open source project (in php5) and I could not find documantation for this. The function declaration is: public function registerComp(IComp $comp) Is it a kind of typecast? -- Cheers! Marco

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