php bigint code example

Example 1: php to int

$num = "3.14";
$int = (int)$num;

Example 2: big int php

<?php
    include('Math/BigInteger.php');

    $a = new Math_BigInteger(2);
    $b = new Math_BigInteger(3);
    $c = $a->add($b);
    echo $c->toString(); 	// 5
?>