note 109352 deleted from function.round by danbrown

From: Date: Mon, 16 Jul 2012 15:40:23 +0000
Subject: note 109352 deleted from function.round by danbrown
References: 1  Groups: php.notes 
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Note Submitter: agroveland at gmail dot com ---- Re: chop a number to x decimal places without rounding up. You can subtract a cheat value (.5 * the smallest decimal place you want) then round as normal. So if you want 3 decimal places, you subtract 0.0005. Rounds to negative decimal place also. <?php function chopRound($n, $p){ return round($n-(5/(pow(10,$p+1))), $p); } echo chopRound(0.164999, 3); // 0.164 echo chopRound(3599.123, -2); // 3500 ?> In the first example, if you add enough 9's onto the number, it will eventually return 0.165. Still, it's pretty quick.

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