note 15915 added to function.decbin
| From: | ajl at gmx dot de | Date: | Mon, 08 Oct 2001 17:47:57 +0000 |
| Subject: | note 15915 added to function.decbin | ||
| Groups: | php.notes | ||
| Request: | Send a blank email to php-notes+get-18686@lists.php.net to get a copy of this message | ||
<?
function bigdec2bin($dec,$doublewords=1) {
$erg = "";
do {
$rest = $dec%2147483648;
if ($rest<0) $rest+=2147483648;
$erg = str_pad(decbin($rest),31,"0",STR_PAD_LEFT).$erg;
$dec = ($dec-$rest)/2147483648;
} while (($dec>0)&&(!($dec<1)));
return str_pad($erg,$doublewords*31,"0",STR_PAD_LEFT);
}
echo "<pre>";
for ($i=1.5*2147483647.0-10;$i<1.5*2147483647.0+10;$i++) {
echo "DEC:".$i." BIN:".bigdec2bin($i,2)."<br>";
}
echo "</pre>";
?>
--
http://www.php.net/manual/en/function.decbin.php
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