├── README
└── fngsin.class.php


/README:
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https://raw.githubusercontent.com/corbanworks/fng-sin-tools/HEAD/README


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/fngsin.class.php:
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  1 | <?php
  2 | 
  3 | /*
  4 | FNG Canada Social Insurance Number Generator and Validator v1.1
  5 | Copyright © 2009 Fake Name Generator <http://www.fakenamegenerator.com/>
  6 | 
  7 | FNG Canada Social Insurance Number Generator and Validator v1.1 by the Fake 
  8 | Name Generator is licensed to you under a Creative Commons Attribution-Share 
  9 | Alike 3.0 United States License.
 10 | 
 11 | For full license details, please visit:
 12 | http://www.fakenamegenerator.com/license.php
 13 | 
 14 | */
 15 | 
 16 | class fngsin{
 17 | 
 18 | 	// Validates using the Luhn Algorithm (MOD10)
 19 | 	// See: http://en.wikipedia.org/wiki/Luhn_algorithm
 20 | 	function luhn($str){
 21 | 		$odd = !strlen($str)%2;
 22 | 		$sum = 0;
 23 | 		for($i=0;$i<strlen($str);++$i){
 24 | 			$n=0+$str[$i];
 25 | 			$odd=!$odd;
 26 | 			if($odd){
 27 | 				$sum+=$n;
 28 | 			}else{
 29 | 				$x=2*$n;
 30 | 				$sum+=$x>9?$x-9:$x;
 31 | 			}
 32 | 		}
 33 | 		return(($sum%10)==0);
 34 | 	}
 35 | 
 36 | 	function validateSIN($sin){
 37 | 		$sin = preg_replace('/[^0-9]/','',$sin);
 38 | 		if(strlen($sin) == 9){
 39 | 			if($sin[0] == '0' || $sin[0] == '8'){
 40 | 				return false;
 41 | 			}else{
 42 | 				return $this->luhn($sin);
 43 | 			}
 44 | 		}else{
 45 | 			return false;
 46 | 		}
 47 | 	}
 48 | 
 49 | 	function generateSIN($separator = ' '){
 50 | 		$validPrefix = array(1,2,3,4,5,6,7,9);
 51 | 		$sin = array_rand($validPrefix,1);
 52 | 		$length = 9;
 53 | 
 54 | 		while(strlen($sin) < ($length - 1)){
 55 | 			$sin .= rand(0,9);
 56 | 		}
 57 | 
 58 | 		$sum = 0;
 59 | 		$pos = 0;
 60 | 
 61 | 		$reversedSIN = strrev( $sin );
 62 | 
 63 | 		while($pos < $length - 1){
 64 | 			$odd = $reversedSIN[ $pos ] * 2;
 65 | 			if($odd > 9){
 66 | 				$odd -= 9;
 67 | 			}
 68 | 
 69 | 			$sum += $odd;
 70 | 
 71 | 			if($pos != ($length - 2)){
 72 | 				$sum += $reversedSIN[ $pos +1 ];
 73 | 			}
 74 | 			$pos += 2;
 75 | 		}
 76 | 
 77 | 		$checkdigit = (( floor($sum/10) + 1) * 10 - $sum) % 10;
 78 | 		$sin .= $checkdigit;
 79 | 
 80 | 		$sin1 = substr($sin,0,3);
 81 | 		$sin2 = substr($sin,3,3);
 82 | 		$sin3 = substr($sin,6,3);
 83 | 
 84 | 		return $sin1.$separator.$sin2.$separator.$sin3;
 85 | 	}
 86 | 	
 87 | }
 88 | 
 89 | /* Example usage: */
 90 | 
 91 | /*
 92 | 
 93 | // Instantiate the class
 94 | $fngsin = new fngsin();
 95 | 
 96 | // Generate a SIN
 97 | echo $fngsin->generateSIN();
 98 | 
 99 | // Validate a SIN
100 | echo $fngsin->validateSIN('046 454 286');
101 | 
102 | */
103 | ?>


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