Parses an ‘order’ query variable and casts it to ASC or DESC as necessary.

Parameters

$orderstringrequired

The 'order' query variable.

Return

Source

protected function parse_order( $order ) {
	if ( ! is_string( $order ) || empty( $order ) ) {
		return 'DESC';
	}

	if ( 'ASC' === strtoupper( $order ) ) {
		return 'ASC';
	} else {
		return 'DESC';
	}
}

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