Using PHP's base_convert() to Convert Numbers Between Arbitrary Bases

The PHP function base_convert() converts a number from one base to another, supporting bases between 2 and 36, where digits above 9 are represented by letters a‑z.

Signature:

string base_convert(string $number, int $frombase, int $tobase)

Parameters:

$number : the number to be converted.

$frombase : the original base of the number (2‑36).

$tobase : the target base for conversion (2‑36).

Return value: a string containing the representation of $number in the target base.

Example:

<?php
$hexadecimal = 'A37334';
echo base_convert($hexadecimal, 16, 2);
?>

Output:

101000110111001100110100