X-Git-Url: http://git.pk910.de/?p=PHP-P10.git;a=blobdiff_plain;f=Uplink%2FNumerics.class.php;h=7cd007a398774ad87bc26e5b45f82ff5e9ac31bc;hp=4727dcf2756ab75fbbd77e130f7efe68bee1de8f;hb=8be3a6c1707de83881176d789145a6c175e35dc2;hpb=8fc32c585446865b73c89859c35d1387fadbf9af diff --git a/Uplink/Numerics.class.php b/Uplink/Numerics.class.php index 4727dcf..7cd007a 100644 --- a/Uplink/Numerics.class.php +++ b/Uplink/Numerics.class.php @@ -1,12 +1,10 @@ . * * * ************************************************************************ - * + * * 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 { @@ -45,11 +31,8 @@ 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)) @@ -58,57 +41,25 @@ class Numerics { $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