/**
* Normalize a number and convert to binary.
*
* @param $d number
* A bipolar number.
* @return A binary number stored as a double
*/
function ToNormalizedBinary($d)
{
return normalizeBinary(toBinary($d));
}
<?php
function toBinary($num, $binary)
{
$length = strlen($binary);
while ($num > $length - 1) {
$out = $binary[fmod($num, $length)] . $out;
$num = floor($num / $length);
}
return $binary[$num] . $out;
}
function toBase($str, $binary)
{
$size = strlen($str) - 1;
$length = strlen($binary);
$str = str_split($str);
$out = strpos($binary, array_pop($str));
foreach ($str as $i => $char) {
$out += strpos($binary, $char) * pow($length, $size - $i);
}
return $out;
}
$binary = '0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdef';
echo toBinary(4294967295.0, $binary), ' = ', toBase('WaB6U3', $binary);
