<?php
function base16($str){
$str = base_convert($str,10,16);
echo $str;
}
base16("000012345678920190113163721231000011101000000000100001");
//8727f63a15f8a0000000000000000000000000000
?>
I have this number array in base 10
000012345678920190113163721231000011101000000000100001
and the expected result should be
8727F63A15F8976591FDDE5B387C5D015A29E06A1
You can use BigInt to solve this in JS
console.log(
BigInt(
"000012345678920190113163721231000011101000000000100001"
).toString(16)
)You can try this-
function convBase($numberInput, $fromBaseInput, $toBaseInput)
{
if ($fromBaseInput==$toBaseInput) return $numberInput;
$fromBase = str_split($fromBaseInput,1);
$toBase = str_split($toBaseInput,1);
$number = str_split($numberInput,1);
$fromLen=strlen($fromBaseInput);
$toLen=strlen($toBaseInput);
$numberLen=strlen($numberInput);
$retval='';
if ($toBaseInput == '0123456789')
{
$retval=0;
for ($i = 1;$i <= $numberLen; $i++)
$retval = bcadd($retval, bcmul(array_search($number[$i-1], $fromBase),bcpow($fromLen,$numberLen-$i)));
return $retval;
}
if ($fromBaseInput != '0123456789')
$base10=convBase($numberInput, $fromBaseInput, '0123456789');
else
$base10 = $numberInput;
if ($base10<strlen($toBaseInput))
return $toBase[$base10];
while($base10 != '0')
{
$retval = $toBase[bcmod($base10,$toLen)].$retval;
$base10 = bcdiv($base10,$toLen,0);
}
return $retval;
}
?>
Then
<?php
convBase('000012345678920190113163721231000011101000000000100001', '0123456789', '0123456789ABCDEF');
?>
parameters->
dataToConvert
fromBase
toBase