<?php
# cifra class
# coded by Alessandro Rosa
# e-mail : [email protected]
# site : http://malilla.supereva.it
# Copyright (C) 2006 Alessandro Rosa
# 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 3 of the License, or
# any later version.
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software Foundation,
# Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
# Compiled with PHP 4.4.0
$oneDIGITarray = array( "0" => "",
"1" => "I",
"2" => "II",
"3" => "III",
"4" => "IV",
"5" => "V",
"6" => "VI",
"7" => "VII",
"8" => "VIII",
"9" => "IX" ) ;
$twoDIGITarray = array( "0" => "",
"1" => "X",
"2" => "XX",
"3" => "XXX",
"4" => "XL",
"5" => "L",
"6" => "LX",
"7" => "LXX",
"8" => "LXXX",
"9" => "XC" ) ;
$threeDIGITarray = array( "0" => "",
"1" => "C",
"2" => "CC",
"3" => "CCC",
"4" => "CD",
"5" => "D",
"6" => "DC",
"7" => "DCC",
"8" => "DCCC",
"9" => "CM" ) ;
$fourDIGITarray = array( "0" => "",
"1" => "M",
"2" => "MM",
"3" => "MMM" ) ;
$ALPHANUMERICALarray = array( 0 => "0",
1 => "1",
2 => "2",
3 => "3",
4 => "4",
5 => "5",
6 => "6",
7 => "7",
8 => "8",
9 => "9",
10 => "A",
11 => "B",
12 => "C",
13 => "D",
14 => "E",
15 => "F"
) ;
class cifra
{
function cifra()
{
$this->arabic = "" ;
$this->roman = "" ;
}
function set_arabic( $a ) { $this->arabic = $a ; }
function pack( $a )
{
$packing_zeros = 4 - ( strlen( $a ) % 4 ) ;
if ( $packing_zeros == 4 ) return $a ;
for ( $i = 0 ; $i < $packing_zeros; $i++ ) $a = "0$a" ;
return $a ;
}
function findstr( $strIn, $strQuery )
{
$length_in = strlen( $strIn );
$length_qry = strlen( $strQuery );
for( $i = 0 ; $i <= ( $length_in - $length_qry ); $i++ )
{
$strOut = substr( $strIn, $i, $length_qry );
if ( strcmp( $strQuery, $strOut ) == 0 ) return true ;
}
return false ;
}
//////////////////////////////////////////////////////
function get_arabic() { return $this->arabic ; }
function get_roman() { return $this->roman ; }
function format_number( $num, $base ) { return "$num<sub>$base</sub>" ; }
function to_roman( $a )
{
$this->set_arabic( $a );
$a = $this->pack( $a ) ;
if ( $a >= 4000 ) return "out of range" ;
$inputDIGIT = "$a" ;
$inputLEN = strlen( $inputDIGIT );
$a = array();
for ( $i = 0 ; $i < $inputLEN; $i++ )
{
$digit = $inputDIGIT{$i} ;
switch( $i )
{
case 3:
$a = $GLOBALS['oneDIGITarray'] ;
break;
case 2:
$a = $GLOBALS['twoDIGITarray'] ;
break;
case 1:
$a = $GLOBALS['threeDIGITarray'] ;
break;
case 0:
$a = $GLOBALS['fourDIGITarray'] ;
break;
default:
return "-1";
break;
}
$this->roman .= $a["$digit"] ;
}
return $this->roman ;
}
function to_arabic( $a )
{
$sum = 0 ;
////////////////////////////////////////////////
$i = 0 ;
$c = 0 ;
$digitARRAY = $GLOBALS['fourDIGITarray'] ;
$token = "";
foreach( $digitARRAY as $value )
{
if ( $this->findstr( $a, $value ) === true && strlen( $value ) >= strlen( $token ) )
{
$c = $i ;
$token = $value ;
}
$i++ ;
}
$s = $c * pow( 10, 3 ) ;
$sum += $s ;
$a = substr( $a, strlen( $token ) );
////////////////////////////////////////////////
$i = 0 ;
$c = 0 ;
$digitARRAY = $GLOBALS['threeDIGITarray'] ;
$token = "";
foreach( $digitARRAY as $value )
{
if ( $this->findstr( $a, $value ) === true && strlen( $value ) >= strlen( $token ) )
{
$c = $i ;
$token = $value ;
}
$i++ ;
}
$s = $c * pow( 10, 2 ) ;
$sum += $s ;
$a = substr( $a, strlen( $token ) );
////////////////////////////////////////////////
$i = 0 ;
$c = 0 ;
$digitARRAY = $GLOBALS['twoDIGITarray'] ;
$token = "";
foreach( $digitARRAY as $value )
{
if ( $this->findstr( $a, $value ) === true && strlen( $value ) >= strlen( $token ) )
{
$c = $i ;
$token = $value ;
}
$i++ ;
}
$s = $c * pow( 10, 1 ) ;
$sum += $s ;
$a = substr( $a, strlen( $token ) );
////////////////////////////////////////////////
$i = 0 ;
$c = 0 ;
$digitARRAY = $GLOBALS['oneDIGITarray'] ;
$token = "";
foreach( $digitARRAY as $value )
{
if ( strcmp( $a, $value ) == 0 && strlen( $value ) >= strlen( $token ) )
{
$c = $i ;
$token = $value ;
}
$i++ ;
}
$s = $c * pow( 10, 0 ) ;
$sum += $s ;
$a = substr( $a, strlen( $token ) );
////////////////////////////////////////////////
$this->arabic = $sum ;
return $sum ;
}
function to_base( $inputNUM, $base )
{
if ( $base < 2 || $base > 16 ) return "NO BASE ALLOWED !" ;
$ret_str = "" ;
$ALPHANUMarray = $GLOBALS['ALPHANUMERICALarray'] ;
while( $inputNUM >= $base )
{
$remainder = $inputNUM % $base ;
$digit = $ALPHANUMarray[$remainder];
$ret_str = "$digit" . $ret_str ;
$inputNUM = ( $inputNUM - $remainder ) / $base ;
}
$digit = $ALPHANUMarray[$inputNUM];
$ret_str = "$digit" . $ret_str ;
$ret_str = $this->pack( $ret_str ) ;
return $ret_str ;
}
function to_decimal( $inputNUM, $base )
{
$sum = 0 ;
$len = strlen( $inputNUM );
for ( $i = $len - 1; $i >= 0 ; $i-- )
{
$c = $inputNUM{$i} + 0;
$exponent = $len - 1 - $i ;
$sum += $c * pow( $base, $exponent );
}
return $sum ;
}
///////////// CLASS MEMBERS //////////////////////////
var $arabic ;
var $roman ;
}
?>
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