the function of the "@" symbol?

From: Date: Tue, 04 Nov 2003 07:42:33 +0000
Subject: the function of the "@" symbol?
Groups: php.general 
Request: Send a blank email to php-general+get-168447@lists.php.net to get a copy of this message
Hi all: I have been searching through several books to find out what the "@" character represents. An example used in code: if (@$first == "no")......... Could anyone please explain the function of "@" in the code? Thanks

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