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File Content: `DiscountsUtil.php`

<?php
/**
 * DiscountsUtil class file.
 */

namespace Automattic\WooCommerce\Utilities;

/**
 * The DiscountsUtil class provides utilities to assist discounts calculation and validation.
 */
class DiscountsUtil {

	/**
	 * Checks if the given email address(es) matches the ones specified on the coupon.
	 *
	 * @param array $check_emails Array of customer email addresses.
	 * @param array $restrictions Array of allowed email addresses.
	 *
	 * @return bool
	 */
	public static function is_coupon_emails_allowed( $check_emails, $restrictions ) {

		foreach ( $check_emails as $check_email ) {
			// With a direct match we return true.
			if ( in_array( $check_email, $restrictions, true ) ) {
				return true;
			}

			// Go through the allowed emails and return true if the email matches a wildcard.
			foreach ( $restrictions as $restriction ) {
				// Convert to PHP-regex syntax.
				$regex = '/^' . str_replace( '*', '(.+)?', $restriction ) . '$/';
				preg_match( $regex, $check_email, $match );
				if ( ! empty( $match ) ) {
					return true;
				}
			}
		}

		// No matches, this one isn't allowed.
		return false;
	}
}

Name	Size	Permission
ArrayUtil.php	13299 bytes	0644
DiscountsUtil.php	1130 bytes	0644
FeaturesUtil.php	4598 bytes	0644
I18nUtil.php	1727 bytes	0644
LoggingUtil.php	3259 bytes	0644
NumberUtil.php	6029 bytes	0644
OrderUtil.php	8370 bytes	0644
PluginUtil.php	13199 bytes	0644
RestApiUtil.php	781 bytes	0644
ShippingUtil.php	1020 bytes	0644
StringUtil.php	5212 bytes	0644
TimeUtil.php	1186 bytes	0644

File Content: DiscountsUtil.php

File Content: `DiscountsUtil.php`