note 110345 added to language.operators.logical
| From: | espertalhao04 at hotmail dot com | Date: | Sun, 14 Oct 2012 11:04:13 +0000 |
| Subject: | note 110345 added to language.operators.logical | ||
| Groups: | php.notes | ||
| Request: | Send a blank email to php-notes+get-191282@lists.php.net to get a copy of this message | ||
if you want to round values down with EXTREME performance, use (number)>>1.
example:
<?php
echo (57>>1);//28
echo round(57/2,0,PHP_ROUND_HALF_DOWN);//28
?>
if you want to round UP, add 1:
<?
echo (58>>1);//29
echo round(57/2,0,PHP_ROUND_HALF_UP);//29
?>
all in a function:
<?php
function bit_round($n,$u=false)
{
return ($n+(bool)$u)>>1;
}
echo bit_round(57);//return 28
echo bit_round(57,true);//return 29
?>
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Probable Submitter: 95.136.43.99
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Manual Page -- http://www.php.net/manual/en/language.operators.logical.php
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