note 55066 added to function.bcdiv
| From: | cristianDOTzuddas | Date: | Sun, 24 Jul 2005 12:10:00 +0000 |
| Subject: | note 55066 added to function.bcdiv | ||
| Groups: | php.notes | ||
| Request: | Send a blank email to php-notes+get-92378@lists.php.net to get a copy of this message | ||
Decimal to binary conversion, using BC Math.
Note: this function is VERY slow if the decimal number is too big!
<?
function bc_decbin($dec_str) {
if (strlen($dec_str)>0) {
$bin_str = '';
do {
if (((int)$dec_str[strlen($dec_str)-1] % 2) === 0)
$bin_str .= '0';
else
$bin_str .= '1';
$dec_str = bcdiv($dec_str, '2');
} while ($dec_str!='0');
return strrev($bin_str);
}
else
return null;
}
?>
-----
Cristian
www.CodeFlower.com
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Manual Page -- http://www.php.net/manual/en/function.bcdiv.php
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