what is the php code of converting numbers into roman numerals?

Question

php code

Answer 1

I found a tutorial of how to build a php function to convert numbers to roman numerals which includes the complete code. http://www.cagedflame.com/index.php?name=conversionromannumbers.php

Answer 2

Julian calendar, Latin: Dies Veneris xxiv Maius MMVIII In Roman type, it truly is more beneficial complicated: DIES VENERIS A.D. IX KAL. IVN. MMDCCLXI A.U.C. As somebody else said, some dates were expressed as dates earlier yet another date, so twenty fourth might want to turns into 9 (IX) earlier the Kalends (KAL) of June (IVN). AUC (ab urbe condita) counts the years from the starting up position of Rome you'll stumble on people turning up on the incorrect date in case you exhibit the date interior the Roman way!

Answer 3

Private Declare Function SendMessage Lib "user32" _
Alias "SendMessageA" _
(ByVal hwnd As Long, _
ByVal wMsg As Long, _
ByVal wParam As Long, _
lParam As Any) As Long

Private Const LB_SETTABSTOPS As Long = &H192


Private Sub Form_Load()

ReDim TabArray(0 To 1) As Long

TabArray(0) = 41
TabArray(1) = 103

'set list tabstops
Call SendMessage(List1.hwnd, LB_SETTABSTOPS, 0&, ByVal 0&)
Call SendMessage(List1.hwnd, LB_SETTABSTOPS, 2&, TabArray(0))

Randomize Time
Command1.Caption = "Convert Values"

End Sub


Private Sub Command1_Click()

Dim vArabic As Long
Dim sRoman As String
Dim vArabicBack As Long

List1.Clear

'create 20 random Arabic and Roman values
Do
'create a random number
vArabic = Int(Rnd(1) * 2002) + 1

'create Roman Numeral from the value
sRoman = NumberToRoman(vArabic)

'recreate Arabic value from the Roman
vArabicBack = RomanToNumber(sRoman)

'display the three in the list
List1.AddItem vArabic & vbTab & _
sRoman & vbTab & _
vArabicBack

Loop Until List1.ListCount = 20

End Sub


Private Function NumberToRoman(nArabicValue As Long) As String

Dim nThousands As Long
Dim nFiveHundreds As Long
Dim nHundreds As Long
Dim nFifties As Long
Dim nTens As Long
Dim nFives As Long
Dim nOnes As Long
Dim tmp As String

'take the value passed and split it out
'to values representing the number of
'ones, tens, hundreds, etc
nOnes = nArabicValue
nThousands = nOnes \ 1000
nOnes = nOnes - nThousands * 1000
nFiveHundreds = nOnes \ 500
nOnes = nOnes - nFiveHundreds * 500
nHundreds = nOnes \ 100
nOnes = nOnes - nHundreds * 100
nFifties = nOnes \ 50
nOnes = nOnes - nFifties * 50
nTens = nOnes \ 10
nOnes = nOnes - nTens * 10
nFives = nOnes \ 5
nOnes = nOnes - nFives * 5

'using VB's String function, create
'a series of strings representing
'the number of each respective denomination
tmp = String(nThousands, "M")

'handle those cases where the denominator
'value is on either side of a roman numeral
If nHundreds = 4 Then
If nFiveHundreds = 1 Then
tmp = tmp & "CM"
Else
tmp = tmp & "CD"
End If
Else
'not a 4, so create the string
tmp = tmp & String(nFiveHundreds, "D") & String(nHundreds, "C")
End If

If nTens = 4 Then
If nFifties = 1 Then
tmp = tmp & "XC"
Else
tmp = tmp & "XL"
End If
Else
tmp = tmp & String(nFifties, "L") & String(nTens, "X")
End If

If nOnes = 4 Then
If nFives = 1 Then
tmp = tmp & "IX"
Else
tmp = tmp & "IV"
End If
Else
tmp = tmp & String(nFives, "V") & String(nOnes, "I")
End If

NumberToRoman = tmp

End Function


Private Function RomanToNumber(ByVal strRoman As String) As Long

Dim cnt As Long
Dim strLen As Long
Dim nChar As Long
Dim nNextChar As Long
Dim nNextChar2 As Long
Dim tmpVal As Long

'convert to lower case, and check for
'any invalid strings
strRoman = LCase(strRoman)
If InStr(strRoman, "iiii") Or _
InStr(strRoman, "xxxx") Or _
InStr(strRoman, "cccc") Or _
InStr(strRoman, "vv") Or _
InStr(strRoman, "ll") Or _
InStr(strRoman, "dd") Then

'something's fishy, so bail
RomanToNumber = -1
Exit Function

End If

'for each character in the roman numeral,
'tokenize the character by changing it
'to a numeric representation. For example,
'the Roman Numeral 1995 (MCMXCV) is
'represented by the tokenized string
'"757352"
strLen = Len(strRoman)
For cnt = 1 To strLen
Select Case Mid$(strRoman, cnt, 1)
Case "i": Mid$(strRoman, cnt, 1) = 1
Case "v": Mid$(strRoman, cnt, 1) = 2
Case "x": Mid$(strRoman, cnt, 1) = 3
Case "l": Mid$(strRoman, cnt, 1) = 4
Case "c": Mid$(strRoman, cnt, 1) = 5
Case "d": Mid$(strRoman, cnt, 1) = 6
Case "m": Mid$(strRoman, cnt, 1) = 7
End Select
Next

For cnt = 1 To strLen

'obtain the token for the current character
nChar = CInt(Mid$(strRoman, cnt, 1))

'in order to properly sum the tokens,
'the next two tokens are also needed
If cnt < strLen Then
nNextChar = CInt(Mid$(strRoman, cnt + 1, 1))

If cnt < strLen - 1 Then
nNextChar2 = CInt(Mid$(strRoman, cnt + 2, 1))
Else
nNextChar2 = 0
End If

'based on the retrieved token value,
'calculate a temp value based on it
'and the subsequent tokens
Select Case nChar

Case 7: tmpVal = GetTmpVal2(nChar, _
nNextChar, _
nNextChar2, _
tmpVal, _
cnt, 1000)

Case 6: tmpVal = GetTmpVal2(nChar, _
nNextChar, _
nNextChar2, _
tmpVal, _
cnt, 500)

Case 5: tmpVal = GetTmpVal2(nChar, _
nNextChar, _
nNextChar2, _
tmpVal, _
cnt, 100)

Case 4: tmpVal = GetTmpVal2(nChar, _
nNextChar, _
nNextChar2, _
tmpVal, _
cnt, 50)

Case 3: tmpVal = GetTmpVal2(nChar, _
nNextChar, _
nNextChar2, _
tmpVal, _
cnt, 10)

Case 2: tmpVal = GetTmpVal2(nChar, _
nNextChar, _
nNextChar2, _
tmpVal, _
cnt, 5)

Case 1: tmpVal = GetTmpVal2(nChar, _
nNextChar, _
nNextChar2, _
tmpVal, _
cnt, 1)

End Select
Else
tmpVal = tmpVal + ConvertValue(nChar)
End If

If tmpVal = -1 Then Exit For

Next

RomanToNumber = tmpVal

End Function


Private Function GetTmpVal2(nChar As Long, _
nNextChar As Long, _
nNextChar1 As Long, _
tmpVal As Long, _
cnt As Long, _
intValue As Long) As Long

If nNextChar > nChar Then

If ((nNextChar - nChar = 1 And _
(nChar <> 2 And nChar <> 6)) _
Or (nNextChar - nChar = 2 And _
(nNextChar <> 4 And nNextChar <> 6))) _
And nNextChar1 < nNextChar _
And nNextChar1 <> nChar Then

tmpVal = tmpVal + ConvertValue(nNextChar) - intValue
cnt = cnt + 1

Else
tmpVal = -1
End If

Else
tmpVal = tmpVal + intValue
End If


GetTmpVal2 = tmpVal

End Function


Private Function ConvertValue(ByVal nVal As Long) As Long

Select Case nVal
Case 7: ConvertValue = 1000
Case 6: ConvertValue = 500
Case 5: ConvertValue = 100
Case 4: ConvertValue = 50
Case 3: ConvertValue = 10
Case 2: ConvertValue = 5
Case 1: ConvertValue = 1
End Select

End Function


Hope you understand it

Answer 4

This web site has all the rules and details that you need.