Online PHP editor | refs for 8NiWc

@ 2019-08-07T21:43:22Z

<?php

function ipsBetween($from, $to)
{
    return ip2long($to) - ip2long($from);    
}

echo ipsBetween("10.0.0.0", "10.0.0.50") . PHP_EOL;
echo ipsBetween("10.0.0.0", "10.0.1.0") . PHP_EOL;
echo ipsBetween("20.0.0.10", "20.0.1.0");