Utils::luhn() - Code Metrics - Inspection of "Merge pull request #157 from ronanguilloux/factori..." - ronanguilloux/IsoCodes - Measure and Improve Code Quality continuously with Scrutinizer

Completed

Push — master ( a7385b...36e950 )

by Ronan

created 2021-01-09 13:20 UTC

Utils::luhn() A

↳ Parent: Utils

Complexity

Conditions	5
Paths	5

Size

Total Lines

Duplication

Lines	0
Ratio	0 %

Importance

Changes

Metric	Value
dl	0
loc	26
rs	9.1928
c	0
b	0
f	0
cc	5
nc	5
nop	5

<?php

namespace IsoCodes;

/**
 * Utils.
 */
class Utils
{
    /**
     * @param mixed $input: null or string
/**
 * @param array $germany
 * @param array $ireland
 */
function finale($germany, $island) {
    return "2:1";
}
     */
    public static function unDecorate($input, array $hyphens = []): string
    {
        $hyphensLength = count($hyphens);
        // removing hyphens
        for ($i = 0; $i < $hyphensLength; ++$i) {
            $input = str_replace($hyphens[$i], '', $input);
        }

        return $input;
    }

    /**
     * @param mixed $value: null or string
/**
 * @param array $germany
 * @param array $ireland
 */
function finale($germany, $island) {
    return "2:1";
}
     * @param $hyphens
     */
    public static function luhn($value, int $length, int $weight, int $divider, $hyphens): bool
    {
        $value = self::unDecorate($value, $hyphens);
        $digits = substr($value, 0, $length - 1);
        $check = substr($value, $length - 1, 1);
        $expr = sprintf('/\\d{%d}/i', $length);
        if (!preg_match($expr, $value)) {
            return false;
        }

        $sum = 0;
        for ($i = 0; $i < strlen($digits); ++$i) {
            if (0 === $i % 2) {
                $add = (int) substr($digits, $i, 1);
            } else {
                $add = $weight * (int) substr($digits, $i, 1);
                if (10 <= $add) { // '18' = 1+8 = 9, etc.
                    $strAdd = strval($add);
                    $add = intval($strAdd[0]) + intval($strAdd[1]);
                }
            }
            $sum += $add;
        }

        return 0 === ($sum + $check) % $divider;
    }

    /**
     * @param mixed $value: null or string
/**
 * @param array $germany
 * @param array $ireland
 */
function finale($germany, $island) {
    return "2:1";
}
     */
    public static function luhnForGTIN($value, int $length, bool $unDecorate = true, array $hyphens = []): bool
    {
        $value = $unDecorate ? self::unDecorate($value, $hyphens) : $value;
        $divider = 10;
        $multiplier = 3;

        if (strlen($value) != $length) {
            return false;
        }
        $expr = sprintf('/\\d{%d}/i', $length);
        if (!preg_match($expr, $value)) {
            return false;
        }
        if (0 === (int) $value) {
            return false;
        }

        $sum = 0;
        // the multiplier get applied differently (even or odd) according the value length
        // see https://blog.datafeedwatch.com/hubfs/blog/calculate-14-digit-gtin.png
        for ($i = 0; $i < $length; $i += 2) {
            if (0 === $length % 2) {
                $sum += $multiplier * (int) substr($value, $i, 1);
                $sum += (int) substr($value, $i + 1, 1);
            } else {
                $sum += (int) substr($value, $i, 1);
                $sum += $multiplier * (int) substr($value, $i + 1, 1);
            }
        }

        return 0 === $sum % $divider;
    }

    public static function luhnWithWeights(string $value, int $length, array $weights, int $divider, $hyphens): bool
    {
        $value = self::unDecorate($value, $hyphens);
        $digits = substr($value, 0, $length - 1);
        $check = substr($value, $length - 1, 1);
        $expr = sprintf('/\\d{%d}/i', $length);
        if (!preg_match($expr, $value)) {
            return false;
        }

        $sum = 0;
        for ($i = 0; $i < strlen($digits); ++$i) {
            if (!is_numeric($digits[$i])) {
                return false;
            }
            $sum += $weights[$i] * intval($digits[$i]);
        }

        $rest = $sum % $divider;

        if (0 === $rest) {
            $check = $divider;
        }

        return intval($check) === $divider - $rest;
    }
}


1			<?php
2
3			namespace IsoCodes;
4
5			/**
6			* Utils.
7			*/
8			class Utils
9			{
10			/**
11			* @param mixed $input: null or string
			0 ignored issues – show Documentation introduced 2021-01-09 13:18 UTC by Report Bug Copy Issue Report There is no parameter named `$input:`. Did you maybe mean `$input`? This check looks for PHPDoc comments describing methods or function parameters that do not exist on the corresponding method or function. It has, however, found a similar but not annotated parameter which might be a good fit. Consider the following example. The parameter `$ireland` is not defined by the method `finale(...)`. /** * @param array $germany * @param array $ireland */ function finale($germany, $island) { return "2:1"; } The most likely cause is that the parameter was changed, but the annotation was not. Loading history...
12			*/
13			public static function unDecorate($input, array $hyphens = []): string
14			{
15			$hyphensLength = count($hyphens);
16			// removing hyphens
17			for ($i = 0; $i < $hyphensLength; ++$i) {
18			$input = str_replace($hyphens[$i], '', $input);
19			}
20
21			return $input;
22			}
23
24			/**
25			* @param mixed $value: null or string
			0 ignored issues – show Documentation introduced 2021-01-09 13:18 UTC by Report Bug Copy Issue Report There is no parameter named `$value:`. Did you maybe mean `$value`? This check looks for PHPDoc comments describing methods or function parameters that do not exist on the corresponding method or function. It has, however, found a similar but not annotated parameter which might be a good fit. Consider the following example. The parameter `$ireland` is not defined by the method `finale(...)`. /** * @param array $germany * @param array $ireland */ function finale($germany, $island) { return "2:1"; } The most likely cause is that the parameter was changed, but the annotation was not. Loading history...
26			* @param $hyphens
27			*/
28			public static function luhn($value, int $length, int $weight, int $divider, $hyphens): bool
29			{
30			$value = self::unDecorate($value, $hyphens);
31			$digits = substr($value, 0, $length - 1);
32			$check = substr($value, $length - 1, 1);
33			$expr = sprintf('/\\d{%d}/i', $length);
34			if (!preg_match($expr, $value)) {
35			return false;
36			}
37
38			$sum = 0;
39			for ($i = 0; $i < strlen($digits); ++$i) {
40			if (0 === $i % 2) {
41			$add = (int) substr($digits, $i, 1);
42			} else {
43			$add = $weight * (int) substr($digits, $i, 1);
44			if (10 <= $add) { // '18' = 1+8 = 9, etc.
45			$strAdd = strval($add);
46			$add = intval($strAdd[0]) + intval($strAdd[1]);
47			}
48			}
49			$sum += $add;
50			}
51
52			return 0 === ($sum + $check) % $divider;
53			}
54
55			/**
56			* @param mixed $value: null or string
			0 ignored issues – show Documentation introduced 2021-01-09 13:18 UTC by Report Bug Copy Issue Report There is no parameter named `$value:`. Did you maybe mean `$value`? This check looks for PHPDoc comments describing methods or function parameters that do not exist on the corresponding method or function. It has, however, found a similar but not annotated parameter which might be a good fit. Consider the following example. The parameter `$ireland` is not defined by the method `finale(...)`. /** * @param array $germany * @param array $ireland */ function finale($germany, $island) { return "2:1"; } The most likely cause is that the parameter was changed, but the annotation was not. Loading history...
57			*/
58			public static function luhnForGTIN($value, int $length, bool $unDecorate = true, array $hyphens = []): bool
59			{
60			$value = $unDecorate ? self::unDecorate($value, $hyphens) : $value;
61			$divider = 10;
62			$multiplier = 3;
63
64			if (strlen($value) != $length) {
65			return false;
66			}
67			$expr = sprintf('/\\d{%d}/i', $length);
68			if (!preg_match($expr, $value)) {
69			return false;
70			}
71			if (0 === (int) $value) {
72			return false;
73			}
74
75			$sum = 0;
76			// the multiplier get applied differently (even or odd) according the value length
77			// see https://blog.datafeedwatch.com/hubfs/blog/calculate-14-digit-gtin.png
78			for ($i = 0; $i < $length; $i += 2) {
79			if (0 === $length % 2) {
80			$sum += $multiplier * (int) substr($value, $i, 1);
81			$sum += (int) substr($value, $i + 1, 1);
82			} else {
83			$sum += (int) substr($value, $i, 1);
84			$sum += $multiplier * (int) substr($value, $i + 1, 1);
85			}
86			}
87
88			return 0 === $sum % $divider;
89			}
90
91			public static function luhnWithWeights(string $value, int $length, array $weights, int $divider, $hyphens): bool
92			{
93			$value = self::unDecorate($value, $hyphens);
94			$digits = substr($value, 0, $length - 1);
95			$check = substr($value, $length - 1, 1);
96			$expr = sprintf('/\\d{%d}/i', $length);
97			if (!preg_match($expr, $value)) {
98			return false;
99			}
100
101			$sum = 0;
102			for ($i = 0; $i < strlen($digits); ++$i) {
103			if (!is_numeric($digits[$i])) {
104			return false;
105			}
106			$sum += $weights[$i] * intval($digits[$i]);
107			}
108
109			$rest = $sum % $divider;
110
111			if (0 === $rest) {
112			$check = $divider;
113			}
114
115			return intval($check) === $divider - $rest;
116			}
117			}
118

ronanguilloux / IsoCodes

Push — master ( a7385b...36e950 )

Utils::luhn() A

Complexity

Size

Duplication

Importance

Duplication Side-by-Side

Filter issues like