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@ 2015-11-05T16:07:21Z

<?php

function ipv4Breakout ($ip_address, $ip_nmask) {
    $hosts = array();
    //convert ip addresses to long form
    $ip_address_long = ip2long($ip_address);
    $ip_nmask_long = ip2long($ip_nmask);

    //caculate network address
    $ip_net = $ip_address_long & $ip_nmask_long;

    //caculate first usable address
    $ip_host_first = ((~$ip_nmask_long) & $ip_address_long);
    $ip_first = ($ip_address_long ^ $ip_host_first) + 1;

    //caculate last usable address
    $ip_broadcast_invert = ~$ip_nmask_long;
    $ip_last = ($ip_address_long | $ip_broadcast_invert) - 1;

    //caculate broadcast address
    $ip_broadcast = $ip_address_long | $ip_broadcast_invert;

    foreach (range($ip_first, $ip_last) as $ip) {
            array_push($hosts, $ip);
    }

    $block_info = array(array("network" => "$ip_net"),
            array("first_host" => "$ip_first"),
            array("last_host" => "$ip_last"),
            array("broadcast" => "$ip_broadcast"),
            $hosts);

    return $block_info;
}

print_r(ipv4Breakout ('96.4.3.0', '255.255.255.0'));

Output for git.master, git.master_jit, rfc.property-hooks: Fatal error: Uncaught ValueError: The supplied range exceeds the maximum array size: start=-2684091394 end=1610875649 in /in/9LoFN:23 Stack trace: #0 /in/9LoFN(23): range(1610875649, -2684091394) #1 /in/9LoFN(36): ipv4Breakout('96.4.3.0', '255.255.255.0') #2 {main} thrown in /in/9LoFN on line 23
Process exited with code 255.

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2020-03-21 RFC: Is_Literal - declined
2020-12-04 Enumerations - included in PHP 8.1
2018-06-15 Typed Properties v2 - implemented in PHP 7.4
2016-08-12 Object typehint - included in PHP 7.2
2016-08-14 Arrow functions - withdrawn
2016-05-29 array_change_keys() - withdrawn
2016-04-19 Lexical scope support for anonymous classes - suspended
2016-04-17 Functional Interfaces - declined
2016-03-16 Typed Properties - superseded in favor of Typed Properties 2.0
2015-08-27 Callable Prototypes - declined
2015-05-01 Short Closures - declined / withdrawn in favor of Arrow Functions
2015-02-18 Scalar type hints v5 - included in PHP 7
2015-02-14 Union Types - declined
2013-09-22 Anonymous classes - included in PHP 7

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