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Funktion dec2string ($ decimal, $ base)
{
global $ error;
$ String = null;
$ Base = (int) $ base;
if ($ base <2 | | $ base> 36 | | $ base == 10) {
echo 'BASE muss im Bereich 2-9 oder 11-36 werden';
exit;
}
$ Charset = '0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ ';
$ Charset = substr ($ charset, 0, $ base);
if (! ereg ('(^[ 0-9] {1,16 }$)', trim ($ decimal))) {
$ Error ['dec_input'] = 'Der Wert muss eine positive Ganzzahl sein ";
return false;
}
do {
$ Rest = bcmod ($ decimal, $ base);
$ Char = substr ($ charset, $ Rest, 1); / / get CHAR aus dem Array
$ String = "$ char $ string"; / / voranstellen Ausgang
$ Decimal = bcdiv (bcsub ($ decimal, $ Rest), $ base);
} While ($ decimal> 0);
return $ string;
} Funktion string2dec ($ string, $ base)
{
global $ error;
$ Decimal = 0;
$ Base = (int) $ base;
if ($ base <2 | | $ base> 36 | | $ base == 10) {
echo 'BASE muss im Bereich 2-9 oder 11-36 werden';
exit;
}
$ Charset = '0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ ';
$ Charset = substr ($ charset, 0, $ base);
$ String = trim ($ string);
if (empty ($ string)) {
$ Error [] = 'Input-String ist leer ";
return false;
}
do {
$ Char = substr ($ string, 0, 1); / / extract Hauptfigur
$ String = substr ($ string, 1); / / Drop Hauptfigur
$ Pos = strpos ($ charset, $ char); / / in $ charset Offset erhalten
if ($ pos === false) {
$ Error [] = "Nicht erlaubtes Zeichen ($ char) in INPUT string";
return false;
}
$ Decimal = bcadd (bcmul ($ decimal, $ base), $ pos);
} While ($ string <> null);
return $ decimal;
} Funktion pad ($ str, $ num)
{
Rückkehr str_repeat ("0", $ num - strlen ($ str)) $ str.;
} / / Main
if (isset ($ _GET ["submit"]))
{
$ Ip = 0;
if (isset ($ _GET ["int"]) & & $ _GET ["int"]! = "")
{
$ Ip = $ _GET ["int"];
}
else if (isset ($ _GET ["dot"]) & & $ _GET ["dot"]! = "")
{
$ Ip = ip2long ($ _GET ["dot"]);
}
sonst
{
$ Ip = 0;
} $ Uns_ip = ($ ip> 0 $ ip:? 0xffffffff + $ ip + 1) + 0; if (($ uns_ip & 0 × 80000000) == 0)
{
$ Mask = 0xFF000000;
}
else if (($ uns_ip & 0xC0000000) == -2147483648)
{
$ Mask = 0xffff0000;
}
else if (($ uns_ip & 0xE0000000) == -1073741824)
{
$ Mask = 0xffffff00;
}
sonst
{
$ Mask = "";
}
$ Dot_ip = long2ip ($ uns_ip);
$ Hex_ip = dec2string ($ uns_ip, 16);
. $ Hex_ip = "0x" pad ($ hex_ip, 8);
$ Oct_ip = dec2string ($ uns_ip, 8);
$ Oct_ip = "0"-Pad ($ oct_ip, 16).;
$ Bin_ip = dec2string ($ uns_ip, 2);
$ Bin_ip = pad ($ bin_ip, 32);
?> Conversion Ergebnis | Dot-Notation | |
|---|
| Dezimalzahl | |
|---|
| Unsigned Dezimalzahl | |
|---|
| Hexadezimalzahl | |
|---|
| Binärzahl | |
|---|
| Oktalzahl | |
|---|
| Natürliche netmask | |
|---|
| |
