A base_convert replacement that doesn't lose precision on large numbers.
A few differences from this convert:
- Second and third parameters (bases) accept:
- an int between 2 and 64 (0-9a-zA-Z-_)
- a string of unique characters
- an array of unique characters
- A fourth parameter allows passing a padding length for the output
- A fifth parameter can be passed to be used as the padding character, else the first char of the base is used.
Negative numbers are converted to positive, just like base_convert.
This function uses the GMP or the BCMath extension. Install one of them.
apt install php-gmp
apt install php-bcmath
Uses GMP > BCMath > PHP. If vanilla PHP, a E_USER_WARNING is triggered.
To Install this library:
composer require choval/base_convert
Procedural:
use function Choval\base_convert;
echo base_convert(1000, 10, 16);
// 3e8Object:
use Choval\BaseConvert;
echo BaseConvert::from(1000)->to(16);
// 3e8
echo BaseConvert::from('3e8', 16)->to(64);
// fEPadding:
$base = 'abcdefghijklmnopqrstuvwxyz';
echo BaseConvert::from(1000)->to($base);
// bmm
echo BaseConvert::from(1000)->to($base, 10);
// aaaaaaabmm
echo BaseConvert::from(1000)->to($base, 10, '#');
// #######bmm
echo base_convert(1000, 10, $base, 10, '#');
// #######bmm
echo BaseConvert::from('#######bmm', $base)->to(10);
// 1000
echo base_convert('#######bmm', $base, 10);
// 1000Keep in mind the type of the parameters, '10' and 10 are not the same.
$base = 'abcdefghijklmnopqrstuvwxyz';
echo BaseConvert::from('bmm', $base)->to(10);
// 1000
echo BaseConvert::from('bmm', $base)->to('10');
// 0000010111
echo BaseConvert::from('bmm', $base)->to('01');
// 1111101000
echo BaseConvert::from('bmm', $base)->to(2);
// 1111101000MIT, see LICENSE