Barcode.php — GiveWP – Donation Plugin and Fundraising Platform 2.18.1

give / vendor / fakerphp / faker / src / Faker / Provider / Barcode.php

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Barcode.php

115 lines

1	<?php
2
3	namespace Faker\Provider;
4
5	/**
6	* @see http://en.wikipedia.org/wiki/EAN-13
7	* @see http://en.wikipedia.org/wiki/ISBN
8	*/
9	class Barcode extends Base
10	{
11	private function ean($length = 13)
12	{
13	$code = static::numerify(str_repeat('#', $length - 1));
14
15	return $code . static::eanChecksum($code);
16	}
17
18	/**
19	* Utility function for computing EAN checksums
20	*
21	* @param string $input
22	*
23	* @return integer
24	*/
25	protected static function eanChecksum($input)
26	{
27	$sequence = (strlen($input) + 1) === 8 ? array(3, 1) : array(1, 3);
28	$sums = 0;
29	foreach (str_split($input) as $n => $digit) {
30	$sums += $digit * $sequence[$n % 2];
31	}
32	return (10 - $sums % 10) % 10;
33	}
34
35	/**
36	* ISBN-10 check digit
37	* @link http://en.wikipedia.org/wiki/International_Standard_Book_Number#ISBN-10_check_digits
38	*
39	* @param string $input ISBN without check-digit
40	* @throws \LengthException When wrong input length passed
41	*
42	* @return integer Check digit
43	*/
44	protected static function isbnChecksum($input)
45	{
46	// We're calculating check digit for ISBN-10
47	// so, the length of the input should be 9
48	$length = 9;
49
50	if (strlen($input) !== $length) {
51	throw new \LengthException(sprintf('Input length should be equal to %d', $length));
52	}
53
54	$digits = str_split($input);
55	array_walk(
56	$digits,
57	function (&$digit, $position) {
58	$digit = (10 - $position) * $digit;
59	}
60	);
61	$result = (11 - array_sum($digits) % 11) % 11;
62
63	// 10 is replaced by X
64	return ($result < 10)?$result:'X';
65	}
66
67	/**
68	* Get a random EAN13 barcode.
69	* @return string
70	* @example '4006381333931'
71	*/
72	public function ean13()
73	{
74	return $this->ean(13);
75	}
76
77	/**
78	* Get a random EAN8 barcode.
79	* @return string
80	* @example '73513537'
81	*/
82	public function ean8()
83	{
84	return $this->ean(8);
85	}
86
87	/**
88	* Get a random ISBN-10 code
89	* @link http://en.wikipedia.org/wiki/International_Standard_Book_Number
90	*
91	* @return string
92	* @example '4881416324'
93	*/
94	public function isbn10()
95	{
96	$code = static::numerify(str_repeat('#', 9));
97
98	return $code . static::isbnChecksum($code);
99	}
100
101	/**
102	* Get a random ISBN-13 code
103	* @link http://en.wikipedia.org/wiki/International_Standard_Book_Number
104	*
105	* @return string
106	* @example '9790404436093'
107	*/
108	public function isbn13()
109	{
110	$code = '97' . static::numberBetween(8, 9) . static::numerify(str_repeat('#', 9));
111
112	return $code . static::eanChecksum($code);
113	}
114	}
115