Luhn::validate() - Code Metrics - Inspection of "#823 Exported luhn check into separate validation..." - Respect/Validation - Measure and Improve Code Quality continuously with Scrutinizer

Completed

Pull Request — master (#850)

unknown

created 2017-08-18 11:49 UTC

Luhn::validate() A

↳ Parent: Luhn

Complexity

Conditions	2
Paths	2

Size

Total Lines	10
Code Lines	5

Duplication

Lines	0
Ratio	0 %

Code Coverage

Tests	0
CRAP Score	6

Importance

Changes

Metric	Value
dl	0
loc	10
c	0
b	0
f	0
ccs	0
cts	5
cp	0
rs	9.4285
cc	2
eloc	5
nc	2
nop	1
crap	6

<?php

namespace Respect\Validation\Rules;

class Luhn extends AbstractRule
{
    public function validate($input)
    {
        $input = preg_replace('([^0-9])', '', $input);

        if (empty($input)) {
            return false;
        }

        return $this->verifyMod10($input);
    }

    /**
     * Returns whether the input matches the Luhn algorithm or not.
     *
     * @param string $input
     *
     * @return bool
     */
    private function verifyMod10($input)
    {
        $sum = 0;
        $input = strrev($input);
        for ($i = 0, $inputLength = mb_strlen($input); $i < $inputLength; ++$i) {
            $current = mb_substr($input, $i, 1);
            if ($i % 2 === 1) {
                $current *= 2;
                if ($current > 9) {
                    $firstDigit = $current % 10;
                    $secondDigit = ($current - $firstDigit) / 10;
                    $current = $firstDigit + $secondDigit;
                }
            }
            $sum += $current;
        }

        return $sum % 10 === 0;
    }
}


1			<?php
2
3			namespace Respect\Validation\Rules;
4
5			class Luhn extends AbstractRule
6			{
7			public function validate($input)
8			{
9			$input = preg_replace('([^0-9])', '', $input);
10
11			if (empty($input)) {
12			return false;
13			}
14
15			return $this->verifyMod10($input);
16			}
17
18			/**
19			* Returns whether the input matches the Luhn algorithm or not.
20			*
21			* @param string $input
22			*
23			* @return bool
24			*/
25			private function verifyMod10($input)
26			{
27			$sum = 0;
28			$input = strrev($input);
29			for ($i = 0, $inputLength = mb_strlen($input); $i < $inputLength; ++$i) {
30			$current = mb_substr($input, $i, 1);
31			if ($i % 2 === 1) {
32			$current *= 2;
33			if ($current > 9) {
34			$firstDigit = $current % 10;
35			$secondDigit = ($current - $firstDigit) / 10;
36			$current = $firstDigit + $secondDigit;
37			}
38			}
39			$sum += $current;
40			}
41
42			return $sum % 10 === 0;
43			}
44			}
45

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Pull Request — master (#850)

Luhn::validate() A

Complexity

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