Sort roman number in php

Question

I have a classes in roman number like

    I
    II 
    III
    IV
    IX
    V
    VI
    VII
    XI Commerce
    XI Arts 
    XI Science

i have tried sorting by roman number function but due to extra string are there with XI class like arts, commerce so its now working as per aspected. Is there any way to come out with any result.

enter image description here

Better you make converter function the roman to numeric first .. — matzone, May 23 '13 at 04:52
I have already tried this but the extra string with the number cause the issue — Pramod Kumar Sharma, May 23 '13 at 04:54
This might give you a hint http://stackoverflow.com/questions/6265596/how-to-convert-a-roman-numeral-to-integer-in-php — Orangepill, May 23 '13 at 05:15

score 1 · Accepted Answer · answered May 23 '13 at 04:51

1

Try adding a sorf field or something where would be

id value
1    I
2    II
3    III

and so on

answered May 23 '13 at 04:51

Modestas Stankevičius

144
10

I am looking for any php method – Pramod Kumar Sharma May 23 '13 at 04:53
2

`$a = array('XIX', 'LII', 'V', 'MCCXCIV', 'III', 'XIII'); $bool = usort($a, function($a, $b) { return RomanNumber::Roman2Int($a) - RomanNumber::Roman2Int($b); }); var_dump($a);` try this. maybe it would help. http://stackoverflow.com/questions/6265596/how-to-convert-a-roman-numeral-to-integer-in-php/6291089#6291089 – Modestas Stankevičius May 23 '13 at 04:56
You have a class that already has the roman numbers inside it? or you drag those numbers out of database? – Modestas Stankevičius May 23 '13 at 05:09
Admin can add new classes and its coming from db – Pramod Kumar Sharma May 23 '13 at 05:23

score 1 · Answer 2 · answered May 23 '13 at 05:14

1

explode string first to get the roman numerals.

$str = explode(" ",$yourstring);
$roman = $str[0]; //the roman numerals
$subject = $str[1]; //the subject;

then make a function to convert roman numerals to numbers.

answered May 23 '13 at 05:14

shark

325
1
10

Sort roman number in php

2 Answers2