WC_Validation

Complexity

Total Complexity

19

Size/Duplication

Total Lines	154
Duplicated Lines	0 %

Coupling/Cohesion

Components	0
Dependencies	0

Importance

Changes	1
Bugs	0	Features	0

6 Methods

Rating	Name	Duplication	Size	Complexity
A	is_email()	0	3	1
A	is_phone()	0	7	2
C	is_postcode()	0	42	11
A	is_GB_postcode()	0	48	3
A	format_postcode()	0	3	1
A	format_phone()	0	3	1

<?php

For compatibility and reusability of your code, PSR1 recommends that a file should introduce either new symbols (like classes, functions, etc.) or have side-effects (like outputting something, or including other files), but not both at the same time. The first symbol is defined on line 16 and the first side effect is on line 4.

if ( ! defined( 'ABSPATH' ) ) {
	exit; // Exit if accessed directly
}

/**
 * Contains Validation functions
 *
 * @class    WC_Validation
 * @version  2.4.0
 * @package  WooCommerce/Classes
 * @category Class
 * @author   WooThemes
 */
class WC_Validation {

	/**
	 * Validates an email using wordpress native is_email function.
	 *
	 * @param   string	email address
	 * @return  bool
	 */
	public static function is_email( $email ) {
		return is_email( $email );
	}

	/**
	 * Validates a phone number using a regular expression.
	 *
	 * @param   string	phone number
	 * @return  bool
	 */
	public static function is_phone( $phone ) {
		if ( 0 < strlen( trim( preg_replace( '/[\s\#0-9_\-\+\(\)]/', '', $phone ) ) ) ) {
			return false;
		}

		return true;
	}

	/**
	 * Checks for a valid postcode.
	 *
	 * @param   string	postcode
	 * @param	string	country
	 * @return  bool
	 */
	public static function is_postcode( $postcode, $country ) {
		if ( strlen( trim( preg_replace( '/[\s\-A-Za-z0-9]/', '', $postcode ) ) ) > 0 ) {
			return false;
		}

		switch ( $country ) {
			case 'BR' :
				$valid = (bool) preg_match( '/^([0-9]{5})([-])?([0-9]{3})$/', $postcode );
				break;
			case 'CH' :
				$valid = (bool) preg_match( '/^([0-9]{4})$/i', $postcode );
				break;
			case 'DE' :
				$valid = (bool) preg_match( '/^([0]{1}[1-9]{1}|[1-9]{1}[0-9]{1})[0-9]{3}$/', $postcode );
				break;
			case 'ES' :
				$valid = (bool) preg_match( '/^([0-9]{5})$/i', $postcode );
				break;
			case 'GB' :
				$valid = self::is_GB_postcode( $postcode );
				break;
			case 'JP' :
				$valid = (bool) preg_match( '/^([0-9]{3})([-])([0-9]{4})$/', $postcode );
				break;
			case 'PT' :
				$valid = (bool) preg_match( '/^([0-9]{4})([-])([0-9]{3})$/', $postcode );
				break;
			case 'US' :
				$valid = (bool) preg_match( '/^([0-9]{5})(-[0-9]{4})?$/i', $postcode );
				break;
            case 'CA' :
                // 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
				$valid = (bool) preg_match( '/^([ABCEGHJKLMNPRSTVXY]\d[ABCEGHJKLMNPRSTVWXYZ])([\ ])?(\d[ABCEGHJKLMNPRSTVWXYZ]\d)$/i', $postcode );
				break;

			default :
				$valid = true;
				break;
		}

		return apply_filters( 'woocommerce_validate_postcode', $valid, $postcode, $country );
	}

	/**
	 * Check if is a GB postcode.
	 *
	 * @author John Gardner
	 * @param  string $to_check A postcode
	 * @return bool
	 */
	public static function is_GB_postcode( $to_check ) {

		// Permitted letters depend upon their position in the postcode.
		// http://en.wikipedia.org/wiki/Postcodes_in_the_United_Kingdom#Validation
		$alpha1 = "[abcdefghijklmnoprstuwyz]"; // Character 1
		$alpha2 = "[abcdefghklmnopqrstuvwxy]"; // Character 2
		$alpha3 = "[abcdefghjkpstuw]";         // Character 3 == ABCDEFGHJKPSTUW
		$alpha4 = "[abehmnprvwxy]";            // Character 4 == ABEHMNPRVWXY
		$alpha5 = "[abdefghjlnpqrstuwxyz]";    // Character 5 != CIKMOV

		$pcexp = array();

		// Expression for postcodes: AN NAA, ANN NAA, AAN NAA, and AANN NAA
		$pcexp[0] = '/^('.$alpha1.'{1}'.$alpha2.'{0,1}[0-9]{1,2})([0-9]{1}'.$alpha5.'{2})$/';

		// Expression for postcodes: ANA NAA
		$pcexp[1] =  '/^('.$alpha1.'{1}[0-9]{1}'.$alpha3.'{1})([0-9]{1}'.$alpha5.'{2})$/';

		// Expression for postcodes: AANA NAA
		$pcexp[2] =  '/^('.$alpha1.'{1}'.$alpha2.'[0-9]{1}'.$alpha4.')([0-9]{1}'.$alpha5.'{2})$/';

		// Exception for the special postcode GIR 0AA
		$pcexp[3] =  '/^(gir)(0aa)$/';

		// Standard BFPO numbers
		$pcexp[4] = '/^(bfpo)([0-9]{1,4})$/';

		// c/o BFPO numbers
		$pcexp[5] = '/^(bfpo)(c\/o[0-9]{1,3})$/';

		// Load up the string to check, converting into lowercase and removing spaces
		$postcode = strtolower( $to_check );
		$postcode = str_replace( ' ', '', $postcode );

		// Assume we are not going to find a valid postcode
		$valid = false;

		// Check the string against the six types of postcodes
		foreach ( $pcexp as $regexp ) {
			if ( preg_match( $regexp, $postcode, $matches ) ) {
				// Remember that we have found that the code is valid and break from loop
				$valid = true;
				break;
			}
		}

		return $valid;
	}

	/**
	 * Format the postcode according to the country and length of the postcode.
	 *
	 * @param   string	postcode
	 * @param	string	country
	 * @return  string	formatted postcode
	 */
	public static function format_postcode( $postcode, $country ) {
		return wc_format_postcode( $postcode, $country );
	}

	/**
	 * format_phone function.
	 *
	 * @access public
	 * @param mixed $tel
	 * @return string
	 */
	public static function format_phone( $tel ) {
		return wc_format_phone_number( $tel );
	}
}