Total Complexity | 6 |
Total Lines | 36 |
Duplicated Lines | 0 % |
Changes | 0 |
1 | <?php |
||
7 | class ValidImei implements Rule |
||
8 | { |
||
9 | /** |
||
10 | * Check IMEI is valid. |
||
11 | */ |
||
12 | public function passes($attribute, $value): bool |
||
13 | { |
||
14 | $imei = $value; |
||
15 | |||
16 | if (strlen($imei) != 15 || ! ctype_digit($imei)) { |
||
17 | return false; |
||
18 | } |
||
19 | |||
20 | $digits = str_split($imei); // Get digits |
||
21 | $imei_last = array_pop($digits); // Remove last digit, and store it |
||
|
|||
22 | $log = []; |
||
23 | |||
24 | foreach ($digits as $key => $n) { |
||
25 | if ($key & 1) { |
||
26 | $double = str_split($n * 2); // Get double digits |
||
27 | $n = array_sum($double); // Sum double digits |
||
28 | } |
||
29 | |||
30 | $log[] = $n; // Append log |
||
31 | } |
||
32 | $sum = array_sum($log) * 9; // Sum log & multiply by 9 |
||
33 | |||
34 | return substr($sum, -1) === $imei_last; |
||
35 | } |
||
36 | |||
37 | /** |
||
38 | * Get the validation error message. |
||
39 | */ |
||
40 | public function message(): string |
||
43 | } |
||
44 | } |
||
45 |