<?php
-/********************************* PHP-P10 ******************************
- * P10 uplink class by pk910 (c)2011 pk910 *
- ************************************************************************
- * Version 2 (OOP) *
+/******************************* PHP-P10 v2 *****************************
+ * Copyright (C) 2011-2012 Philipp Kreil (pk910) *
* *
- * PHP-P10 is free software; you can redistribute it and/or modify *
+ * This program is free software: you can redistribute it and/or modify *
* it under the terms of the GNU General Public License as published by *
- * the Free Software Foundation; either version 2 of the License, or *
+ * the Free Software Foundation, either version 3 of the License, or *
* (at your option) any later version. *
* *
* This program is distributed in the hope that it will be useful, *
* GNU General Public License for more details. *
* *
* You should have received a copy of the GNU General Public License *
- * along with PHP-P10; if not, write to the Free Software Foundation, *
- * Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA. *
+ * along with this program. If not, see <http://www.gnu.org/licenses/>. *
* *
************************************************************************
- *
+ *
* Uplink/Numerics.class.php
*
* P10 numeric functions
*
- ************************************************************************
- * accessable functions
- *
- * static String intToNum(int $int, int $length)
- * returns the numeric representing $int
- *
- * static int numToInt(String $numeric)
- * returns the integer value, the numeric represents
- *
- * static String parseIP(String $numeric)
- * parses an IP Address in numeric format
*/
class Numerics {
'w','x','y','z','0','1','2','3','4','5','6','7','8','9','[',']'
);
private static $base64charsLength = 64;
-
+
public static function intToNum($int, $length) {
- //fix a small "bug": normaly 0 = AAAAA but we need 1 = AAAAA
- $int = $int - 1;
-
$numeric = "";
for($pos = $length-1; $pos >= 0; $pos--) {
//current position represents floor($int / ($base64charsLength ^ $pos))
$base = $base * self::$base64charsLength;
}
$posValue = floor($int / $base);
+ $int -= $posValue * $base;
//get the char representing $posValue
$posChar = self::$base64chars[$posValue];
$numeric .= $posChar;
}
-
return $numeric;
}
-
+
public static function numToInt($numeric) {
$base = 1;
$int = 0;
for($pos = strlen($numeric)-1; $pos >= 0; $pos--) {
$posValue = array_search($numeric[$pos], self::$base64chars);
- $int = ($posValue * $base);
+ $int += ($posValue * $base);
$base = $base * self::$base64charsLength;
}
-
- //fix a small "bug": normaly 0 = AAAAA but we need 1 = AAAAA
- $int = $int + 1;
-
return $int;
}
-
- public static function parseIP($numeric) {
- if(strlen($numeric) == 6) { //IPv4
- $value = self::numToInt($numeric);
- $ip = array();
- $ip[0] = ($value & 0xff000000) >> 24;
- $ip[1] = ($value & 0x00ff0000) >> 16;
- $ip[2] = ($value & 0x0000ff00) >> 8;
- $ip[3] = ($value & 0x000000ff);
- return implode(".", $ip);
- } else { //IPv6
- $ip = array();
- for($i = 0; $i < strlen($numeric);) {
- if($numeric[$i] == "_") {
- $rightBlocks = (strlen($numeric) - ($i + 1)) / 3;
- $skipCount = 8 - count($ip) - $rightBlocks;
- for($j = 0; $j < $skipBlocks; $j++) {
- $ip[] = "0";
- }
- } else {
- $value = self::numToInt($numeric[$i].$numeric[$i+1].$numeric[$i+2]);
- $ip[] = dechex($value);
- $i += 3;
- }
- }
- return implode(":", $ip);
- }
- }
-
+
}
?>
\ No newline at end of file