note 92362 deleted from function.decbin by thiago
| From: | thiago@php.net | Date: | Tue, 21 Jul 2009 14:29:30 +0000 |
| Subject: | note 92362 deleted from function.decbin by thiago | ||
| References: | 1 | Groups: | php.notes |
| Request: | Send a blank email to php-notes+get-158548@lists.php.net to get a copy of this message | ||
Note Submitter: Nitrogen
----
Decimal to Binary conversion using the BCMath extension..
<?php
function BCDec2Bin($Input='') {
$Output='';
if(preg_match("/^\d+$/",$Input)) {
while($Input!='0') {
$Output.=chr(48+($Input{strlen($Input)-1}%2));
$Input=BCDiv($Input,'2');
}
$Output=strrev($Output);
}
return(($Output!='')?$Output:'0');
}
?>
This will simply convert from Base-10 to Base-2 using BCMath (arbitrary precision calculation).
See also: my 'BCBin2Dec' function on the 'bindec' document.
Enjoy,
Nitrogen.