md5 IPv4 lookup Tabelle

<?php
$ip = array();
$num = 1;
for ($i = 0, $i <= 255, $i++) {
    for ($j = 0, $j <= 255, $j++) {
        for ($k = 0, $k <= 255, $k++) {
            for ($l = 0, $l <= 255, $l++) {
                $ip[$num] = "$i.$j.$k.$l";
                $num++;
            }
        }
    }
}
/* EOF */

function str_packages_upto_ranges_callback(
    $packages, $upto, $sepa, $callback, $ranges = false, $nr = 1, $str = '') {
    /*
        $packages:
            (int)
            how many packages
            f.e. 2 ^= 0.0, 0.1, ...
            f.e. 3 ^= 0.0.0, 0.0.1, ...




        $upto:
            (int)
            count packages up to
            f.e. 2 ^= 0.0, 0.1, 0.2, 1.0, 1.1, 1.2, ...




        $sepa:
            (string)
            separator
            f.e. '.' ^= 0.1
            f.e. '-' ^= 0-1




        $callback:
            (string or array)
            function name which receives one of the results as a $str
            or array which provides: 0 => classname, 1 => method




        $ranges:
            (array)
            array of limits/ranges for each package
            example:
                $packages = 4;
                $ranges = array(
                    array(62, 62),      // count first package only FROM 62 up to 62
                    array(155, 155),    // count first package only FROM 155 up to 155
                    array(128, 255),    // count first package only FROM 128 up to 255
                                        // no 4th package given, so this will go from: 0 to $upto
                );




    */
    $self = __FUNCTION__;
    for($i = 0; $i <= $upto; $i++) {
        /* check ranges-start */
        if($ranges and isset($ranges[$nr - 1][0]) and $i < $ranges[$nr - 1][0]) {
            continue;
        }




        if($nr < $packages) {
            $add = ($nr==1) ? '' : $sepa;
            $self($packages, $upto, $sepa, $callback, $ranges, $nr + 1, $str . $add . $i);
        }else{
            call_user_func_array(
                (is_array($callback) and isset($callback[0]) and $callback[0])
                    ? array($callback[0], $callback[1])
                    : (
                        (is_array($callback[1]) and isset($callback[1]))
                            ? $callback[1]
                            : $callback
                    ),
                array($str . $sepa . $i)
            );
        }




        /* check ranges-end */
        if($ranges and isset($ranges[$nr - 1][1]) and $i == $ranges[$nr - 1][1]) {
            break;
        }
    }
}







function doSome($str) {
    echo $str . '<br>';
}
$packages   = 4;        // create strings like "0.0.0.0" (4 packages)
$upto       = 255;      // count all packages up to 10 (if not limited by $ranges)
$sepa       = '.';      // use a dot as separator
$callback   = 'doSome'; // call this function on each result (class example: array('classname', 'method'))
$ranges = array(
    array(62, 62),      // count first package only FROM 62 up to 62
    array(155, 155),    // count first package only FROM 155 up to 155
    array(128, 255),    // count first package only FROM 128 up to 255
                        // no 4th package given, so this will go from: 0 to $upto
);
str_packages_upto_ranges_callback($packages, $upto, $sepa, $callback, $ranges);