String 2 Number

From: Date: Wed, 10 Oct 2001 11:30:56 +0000
Subject: String 2 Number
Groups: php.general 
Request: Send a blank email to php-general+get-70623@lists.php.net to get a copy of this message
Hi, Does anybody know how can I change a string containing only digits (like "3451") to number? Thanx, Saied

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