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<?php |
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/** |
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* Helper to retrieve the timezone string for a site until |
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* a WP core method exists. |
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* |
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* @return false|mixed|string|void |
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* @since 3.1.7 |
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* @see https://github.com/woocommerce/woocommerce/blob/7a7b5137716623a7b8d13658d0a1a71228db9b0a/plugins/woocommerce/includes/wc-formatting-functions.php#L761 |
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*/ |
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function wpf_timezone_string() { |
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// Added in WordPress 5.3 Ref https://developer.wordpress.org/reference/functions/wp_timezone_string/. |
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if ( function_exists( 'wp_timezone_string' ) ) { |
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return wp_timezone_string(); |
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} |
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|
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// If site timezone string exists, return it. |
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$timezone = get_option( 'timezone_string' ); |
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if ( $timezone ) { |
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return $timezone; |
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} |
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|
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// Get UTC offset, if it isn't set then return UTC. |
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$utc_offset = floatval( get_option( 'gmt_offset', 0 ) ); |
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if ( ! is_numeric( $utc_offset ) || 0.0 === $utc_offset ) { |
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return 'UTC'; |
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} |
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|
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// Adjust UTC offset from hours to seconds. |
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$utc_offset = (int) ( $utc_offset * 3600 ); |
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|
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// Attempt to guess the timezone string from the UTC offset. |
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$timezone = timezone_name_from_abbr( '', $utc_offset ); |
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if ( $timezone ) { |
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return $timezone; |
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} |
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|
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// Last try, guess timezone string manually. |
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foreach ( timezone_abbreviations_list() as $abbr ) { |
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foreach ( $abbr as $city ) { |
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// WordPress restrict the use of date(), since it's affected by timezone settings, but in this case is just what we need to guess the correct timezone. |
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if ( (bool) date( 'I' ) === (bool) $city['dst'] && $city['timezone_id'] && intval( $city['offset'] ) === $utc_offset ) { // phpcs:ignore WordPress.DateTime.RestrictedFunctions.date_date |
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return $city['timezone_id']; |
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} |
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} |
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} |
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|
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// Fallback to UTC. |
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return 'UTC'; |
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} |
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|
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|
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/** |
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* Get timezone offset in seconds. |
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* |
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* @return float|int |
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* @throws Exception |
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* @see https://github.com/woocommerce/woocommerce/blob/7a7b5137716623a7b8d13658d0a1a71228db9b0a/plugins/woocommerce/includes/wc-formatting-functions.php#L808 |
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*/ |
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function wpf_timezone_offset() { |
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$timezone = get_option( 'timezone_string' ); |
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|
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if ( $timezone ) { |
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$timezone_object = new DateTimeZone( $timezone ); |
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return $timezone_object->getOffset( new DateTime( 'now' ) ); |
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} else { |
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return floatval( get_option( 'gmt_offset', 0 ) ) * HOUR_IN_SECONDS; |
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} |
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} |
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