inanzzz | Converting integer values to unique codes and inversing

Say for example you have an integer value but you don't want people to see it as is. What you can do is, you can convert it to unique code then it can be decoded again later. For that we can use base_convert() function.

Example

Value for $suffix can be anything you want.

class BaseConverter
{
	private $suffix;
	
	public function __construct($suffix)
	{
		$this->suffix = $suffix;
	}
	
	public function convert($value)
	{
		if (is_int($this->suffix)) {
			$value = strtoupper(base_convert($value.$this->suffix, 10, 36));
		} else {
			$value = strtoupper(base_convert($value, 10, 36));
		}
		
		return $value;
	}
	
	public function inverse($value)
	{
		if (is_int($this->suffix)) {
			$value = substr(base_convert($value, 36, 10), 0, -(strlen($this->suffix)));
		} else {
			$value = base_convert($value, 36, 10);
		}
		
		return $value;
	}
}

$value = 123456;
$bc = new BaseConverter(1907);
$encoded = $bc->convert($value);
$decoded = $bc->inverse($encoded);

echo "ORIGINAL: $value | ENCODED: $encoded | DECODED: $decoded";

Result

ORIGINAL: 123456 | ENCODED: KF0Y2B | DECODED: 123456

Warning

It may lose precision on large numbers so be careful when using it. Try with 1234567890987654321.