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Completed
Pull Request — 0.9 (#692)
by
unknown
02:58
created

CreditCard::validate()   A

↳ Parent: CreditCard

Complexity

Conditions 2
Paths 2

Size

Total Lines 9
Code Lines 5

Duplication

Lines 0
Ratio 0 %

Code Coverage

Tests 5
CRAP Score 2

Importance

Changes 0
Metric Value
dl 0
loc 9
ccs 5
cts 5
cp 1
rs 9.6666
c 0
b 0
f 0
cc 2
eloc 5
nc 2
nop 1
crap 2
1 
<?php
2 
namespace Respect\Validation\Rules;
3 

            


            
                                                                                                            
                            
            
                                    
            
            

                
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class CreditCard extends AbstractRule

            


            
                                                                                                            
                                                                
            
                                    
            
            

                
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{

            


            
                                                                        
                            
            
                                    
            
            

                
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    public function validate($input)

            


            
                                                                        
                            
            
                                    
            
            

                
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    {

            


            
                                                                        
                            
            
                                    
            
            

                
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        $input = preg_replace('([^0-9])', '', $input);

            


            
                                                                        
                            
            
                                    
            
            

                
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        if (!empty($input)) {

            


            
                                                                        
                            
            
                                    
            
            

                
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            return $this->verifyMod10($input);

            


            
                                                                        
                            
            
                                    
            
            

                
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        }

            


            
                                                                        
                            
            
                                    
            
            

                
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        return false;

            


            
                                                                        
                            
            
                                    
            
            

                
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    }

            


            
                                                                                                            
                            
            
                                    
            
            

                
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    private function verifyMod10($input)

            


            
                                                                                                            
                            
            
                                    
            
            

                
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    {

            


            
                                                                                                            
                            
            
                                    
            
            

                
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        $sum = 0;

            


            
                                                                                                            
                            
            
                                    
            
            

                
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        $input = strrev($input);

            


            
                                                                                                            
                            
            
                                    
            
            

                
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        for ($i = 0; $i < strlen($input); $i++) {

            


            
                                                                                                            
                            
            
                                    
            
            

                
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            $current = substr($input, $i, 1);

            


            
                                                                                                            
                            
            
                                    
            
            

                
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            if ($i % 2 == 1) {

            


            
                                                                                                            
                            
            
                                    
            
            

                
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                $current *= 2;

            


            
                                                                                                            
                            
            
                                    
            
            

                
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                if ($current > 9) {

            


            
                                                                                                            
                            
            
                                    
            
            

                
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                    $firstDigit = $current % 10;

            


            
                                                                                                            
                            
            
                                    
            
            

                
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                    $secondDigit = ($current - $firstDigit) / 10;

            


            
                                                                                                            
                            
            
                                    
            
            

                
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                    $current = $firstDigit + $secondDigit;

            


            
                                                                                                            
                            
            
                                    
            
            

                
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                }

            


            
                                                                                                            
                            
            
                                    
            
            

                
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            }

            


            
                                                                                                            
                            
            
                                    
            
            

                
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            $sum += $current;

            


            
                                                                                                            
                            
            
                                    
            
            

                
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        }

            


            
                                                                                                            
                            
            
                                    
            
            

                
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        return ($sum % 10 == 0);

            


            
                                                                                                            
                            
            
                                    
            
            

                
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    }

            


            
                                                                                                            
                                                                
            
                                    
            
            

                
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}

            


            
                                                        
            
                                    
            
            

                
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