Conditions | 6 |
Paths | 11 |
Total Lines | 25 |
Code Lines | 14 |
Lines | 0 |
Ratio | 0 % |
Tests | 14 |
CRAP Score | 6 |
Changes | 0 |
1 | <?php |
||
28 | 103 | public static function calculateCheckDigit($number) |
|
29 | { |
||
30 | 103 | if (!ctype_digit($number)) { |
|
31 | 6 | throw new Exception\InvalidStructureException( |
|
32 | 6 | "Number can only contain numerical characters, found: $number" |
|
33 | ); |
||
34 | } |
||
35 | |||
36 | 97 | $weight = 2; |
|
37 | 97 | $sum = 0; |
|
38 | |||
39 | 97 | for ($pos=strlen($number)-1; $pos>=0; $pos--) { |
|
40 | 97 | $tmp = $number[$pos] * $weight; |
|
41 | 97 | $sum += ($tmp > 9) ? (1 + ($tmp % 10)) : $tmp; |
|
42 | 97 | $weight = ($weight == 2) ? 1 : 2; |
|
43 | } |
||
44 | |||
45 | 97 | $ceil = $sum; |
|
46 | |||
47 | 97 | while ($ceil % 10 != 0) { |
|
48 | 96 | $ceil++; |
|
49 | } |
||
50 | |||
51 | 97 | return (string)($ceil-$sum); |
|
52 | } |
||
53 | } |
||
54 |