For downward rounding, you'd always want to use floor() and use ceil() for rounding up. round() rounds up on a 5, down on a 4 and below. Example: echo round(141.074, 2); // 141.07 echo round(141.065, 2); // 141.07 I thought round() (or maybe it was a rounding function in another language or something like Excel) did the supposed accounting trick of rounding up and down depending on the next "significant digit" or whatever you'd call it. For example, 141.075 might round to 141.08 (because 7 is odd) and 141.065 might round to 141.06 (because 6 is even). Or vice versa. Supposedly this is an accounting trick that ultimatley works out in the end for proper rounding of money values. Guess our PHP 4.3.4 here doesn't do that though. -TG = = = Original message = = = At 7:57 PM +0100 2/12/07, Marc Weber wrote: >On Mon, 12 Feb 2007 18:02:41 +0100, <tg-php@xxxxxxxxxxxxxxxxxxxxxx> wrote: > >>Is there an easy way in php to round to the nearest 500? >Yeah >$rouned = round($val/500) * 500; I've always questioned the round() function. I believe it has a downward bias, am I wrong? tedd -- ------- http://sperling.com http://ancientstones.com http://earthstones.com ___________________________________________________________ Sent by ePrompter, the premier email notification software. Free download at http://www.ePrompter.com. -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
