fluent-cart / app / Services / Localization / PostcodeVerification.php

PostcodeVerification.php in FluentCart A New Era of eCommerce – Faster, Lighter, and Simpler 1.6.4, at app/Services/Localization/PostcodeVerification.php

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1	<?php
2
3	namespace FluentCart\App\Services\Localization;
4
5	class PostcodeVerification
6	{
7	public function formatPostcode($postcode, $country)
8	{
9	$postcode = $this->normalizePostcode($postcode ?? '');
10
11	switch ($country) {
12	case 'SE':
13	$postcode = substr_replace($postcode, ' ', -2, 0);
14	break;
15	case 'CA':
16	case 'GB':
17	$postcode = substr_replace($postcode, ' ', -3, 0);
18	break;
19	case 'IE':
20	$postcode = substr_replace($postcode, ' ', 3, 0);
21	break;
22	case 'BR':
23	case 'PL':
24	$postcode = substr_replace($postcode, '-', -3, 0);
25	break;
26	case 'JP':
27	$postcode = substr_replace($postcode, '-', 3, 0);
28	break;
29	case 'PT':
30	$postcode = substr_replace($postcode, '-', 4, 0);
31	break;
32	case 'PR':
33	case 'US':
34	case 'MN':
35	$postcode = rtrim(substr_replace($postcode, '-', 5, 0), '-');
36	break;
37	case 'NL':
38	$postcode = substr_replace($postcode, ' ', 4, 0);
39	break;
40	case 'LV':
41	$postcode = preg_replace('/^(LV)?-?(\d+)$/', 'LV-${2}', $postcode);
42	break;
43	case 'CZ':
44	case 'SK':
45	$postcode = preg_replace("/^({$country})-?(\d+)$/", '${1}-${2}', $postcode);
46	$postcode = substr_replace($postcode, ' ', -2, 0);
47	break;
48	case 'DK':
49	$postcode = preg_replace('/^(DK)(.+)$/', '${1}-${2}', $postcode);
50	break;
51	}
52
53	return apply_filters('fluent_cart/address/postcode/format', trim($postcode), $country);
54	}
55
56	/**
57	* Normalize postcodes.
58	*
59	* Remove spaces and convert characters to uppercase.
60	*
61	* @param string $postcode Postcode.
62	* @return string
63	*/
64	public function normalizePostcode($postcode)
65	{
66	return preg_replace('/[\s\-]/', '', trim(self::fctStrtoupper($postcode ?? '')));
67	}
68
69	public static function fctStrtoupper( $string )
70	{
71	$string = $string ?? '';
72	return function_exists( 'mb_strtoupper' ) ? mb_strtoupper( $string ) : strtoupper( $string );
73	}
74
75
76	public function isValid($postcode, $country)
77	{
78	if (strlen(trim(preg_replace('/[\s\-A-Za-z0-9]/', '', $postcode))) > 0) {
79	return false;
80	}
81
82	switch ($country) {
83	case 'AT':
84	case 'BE':
85	case 'CH':
86	case 'HU':
87	case 'NO':
88	$valid = (bool) preg_match('/^([0-9]{4})$/', $postcode);
89	break;
90	case 'BA':
91	$valid = (bool) preg_match('/^([7-8]{1})([0-9]{4})$/', $postcode);
92	break;
93	case 'BR':
94	$valid = (bool) preg_match('/^([0-9]{5})([-])?([0-9]{3})$/', $postcode);
95	break;
96	case 'DE':
97	$valid = (bool) preg_match('/^([0]{1}[1-9]{1}\|[1-9]{1}[0-9]{1})[0-9]{3}$/', $postcode);
98	break;
99	case 'DK':
100	$valid = (bool) preg_match('/^(DK-)?([1-24-9]\d{3}\|3[0-8]\d{2})$/', $postcode);
101	break;
102	case 'ES':
103	case 'FI':
104	case 'EE':
105	case 'FR':
106	case 'IT':
107	$valid = (bool) preg_match('/^([0-9]{5})$/i', $postcode);
108	break;
109	case 'GB':
110	$valid = self::isGBPostcode($postcode);
111	break;
112	case 'IE':
113	$valid = (bool) preg_match('/([AC-FHKNPRTV-Y]\d{2}\|D6W)[0-9AC-FHKNPRTV-Y]{4}/', $this->normalizePostcode($postcode));
114	break;
115	case 'IN':
116	$valid = (bool) preg_match('/^[1-9]{1}[0-9]{2}\s{0,1}[0-9]{3}$/', $postcode);
117	break;
118	case 'JP':
119	$valid = (bool) preg_match('/^([0-9]{3})([-]?)([0-9]{4})$/', $postcode);
120	break;
121	case 'PT':
122	$valid = (bool) preg_match('/^([0-9]{4})([-])([0-9]{3})$/', $postcode);
123	break;
124	case 'PR':
125	case 'US':
126	$valid = (bool) preg_match('/^([0-9]{5})(-[0-9]{4})?$/i', $postcode);
127	break;
128	case 'CA':
129	// CA Postal codes cannot contain D,F,I,O,Q,U and cannot start with W or Z. https://en.wikipedia.org/wiki/Postal_codes_in_Canada#Number_of_possible_postal_codes.
130	$valid = (bool) preg_match('/^([ABCEGHJKLMNPRSTVXY]\d[ABCEGHJKLMNPRSTVWXYZ])([\ ])?(\d[ABCEGHJKLMNPRSTVWXYZ]\d)$/i', $postcode);
131	break;
132	case 'PL':
133	$valid = (bool) preg_match('/^([0-9]{2})([-])([0-9]{3})$/', $postcode);
134	break;
135	case 'CZ':
136	case 'SE':
137	case 'SK':
138	$valid = (bool) preg_match("/^($country-)?([0-9]{3})(\s?)([0-9]{2})$/", $postcode);
139	break;
140	case 'NL':
141	$valid = (bool) preg_match('/^([1-9][0-9]{3})(\s?)(?!SA\|SD\|SS)[A-Z]{2}$/i', $postcode);
142	break;
143	case 'SI':
144	$valid = (bool) preg_match('/^([1-9][0-9]{3})$/', $postcode);
145	break;
146	case 'LI':
147	$valid = (bool) preg_match('/^(94[8-9][0-9])$/', $postcode);
148	break;
149	default:
150	$valid = true;
151	break;
152	}
153
154	return apply_filters('fluent_cart/address/postcode/is_valid', $valid, $postcode, $country);
155	}
156
157	public static function isGBPostcode( $to_check ) {
158
159	// Permitted letters depend upon their position in the postcode.
160	// https://en.wikipedia.org/wiki/Postcodes_in_the_United_Kingdom#Validation.
161	$alpha1 = '[abcdefghijklmnoprstuwyz]'; // Character 1.
162	$alpha2 = '[abcdefghklmnopqrstuvwxy]'; // Character 2.
163	$alpha3 = '[abcdefghjkpstuw]'; // Character 3 == ABCDEFGHJKPSTUW.
164	$alpha4 = '[abehmnprvwxy]'; // Character 4 == ABEHMNPRVWXY.
165	$alpha5 = '[abdefghjlnpqrstuwxyz]'; // Character 5 != CIKMOV.
166
167	$pcexp = array();
168
169	// Expression for postcodes: AN NAA, ANN NAA, AAN NAA, and AANN NAA.
170	$pcexp[0] = '/^(' . $alpha1 . '{1}' . $alpha2 . '{0,1}[0-9]{1,2})([0-9]{1}' . $alpha5 . '{2})$/';
171
172	// Expression for postcodes: ANA NAA.
173	$pcexp[1] = '/^(' . $alpha1 . '{1}[0-9]{1}' . $alpha3 . '{1})([0-9]{1}' . $alpha5 . '{2})$/';
174
175	// Expression for postcodes: AANA NAA.
176	$pcexp[2] = '/^(' . $alpha1 . '{1}' . $alpha2 . '[0-9]{1}' . $alpha4 . ')([0-9]{1}' . $alpha5 . '{2})$/';
177
178	// Exception for the special postcode GIR 0AA.
179	$pcexp[3] = '/^(gir)(0aa)$/';
180
181	// Standard BFPO numbers.
182	$pcexp[4] = '/^(bfpo)([0-9]{1,4})$/';
183
184	// c/o BFPO numbers.
185	$pcexp[5] = '/^(bfpo)(c\/o[0-9]{1,3})$/';
186
187	// Load up the string to check, converting into lowercase and removing spaces.
188	$postcode = strtolower( $to_check );
189	$postcode = str_replace( ' ', '', $postcode );
190
191	// Assume we are not going to find a valid postcode.
192	$valid = false;
193
194	// Check the string against the six types of postcodes.
195	foreach ( $pcexp as $regexp ) {
196	if ( preg_match( $regexp, $postcode, $matches ) ) {
197	// Remember that we have found that the code is valid and break from loop.
198	$valid = true;
199	break;
200	}
201	}
202
203	return $valid;
204	}
205	}
206