Vérification de la plage d'adresses IP PHP

function ipbetweenrange($needle, $start, $end) {

    if((ip2long($needle) >= ip2long($start)) && (ip2long($needle) <= ip2long($end))) {

        return true;

    }

    return false;

}



$ipstart = '70.42.249.1';

$ipend = '70.42.249.255';



echo ipbetweenrange('70.42.249.1', $ipstart, $ipend); // true

echo ipbetweenrange('70.42.249.255', $ipstart, $ipend); // true

echo ipbetweenrange('70.42.249.128', $ipstart, $ipend); // true

echo ipbetweenrange('192.168.0.1', $ipstart, $ipend); // false

foreach( range( 1, 255 ) as $number )

{



        if( $userIp == '70.42.249.' . $number )

                // we have a match, do whatever you want



}