note 87039 added to function.bindec
| From: | flashpack at gmail dot com | Date: | Sun, 16 Nov 2008 12:40:28 +0000 |
| Subject: | note 87039 added to function.bindec | ||
| Groups: | php.notes | ||
| Request: | Send a blank email to php-notes+get-146593@lists.php.net to get a copy of this message | ||
for converting fractions :
eg : 1001.1101
function BinaryToDecimal($binary){
$binary=trim($binary);
if (strstr($binary,'.')){
$split=explode('.',$binary);
$integer=$split[0];
$fraction=$split[1];
$digits=str_split($fraction);
$num=sizeof($digits);
for ($i=1; $i<=$num;$i++){
if ($digits[$i-1]>1){
echo '<script>alert("Enter Binary Digits Only {0,1}\n \n eg: 11001 or
11001.011");history.go(-1)</script> ';
}
$exponent=pow(2,-$i);
$fraction_result+=$digits[$i-1]*$exponent;
}
}else{
$integer=$binary;
}
$splits=str_split($integer);
$num=sizeof($splits)-1;
$i=$num;
foreach($splits as $digits){
if ($digits>1){
echo '<script>alert("Enter Binary Digits Only {0,1}\n \n eg: 11001 or
11001.011");history.go(-1)</script> ';
}
$exponent=pow(2,$i);
$integer_result+=$digits*$exponent;
$i--;
}
if($fraction_result){
$result=$integer_result+$fraction_result;
}else {
$result=$integer_result;
}
return $result ;
}
----
Server IP: 69.147.83.197
Probable Submitter: 41.233.34.204
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