AnsPress_Post_Table_Hooks::cpt_question_columns( array $columns )

	public static function cpt_question_columns( $columns ) {
		$columns              = array();
		$columns['cb']        = '<input type="checkbox" />';
		$columns['ap_author'] = __( 'Author', 'anspress-question-answer' );
		$columns['title']     = __( 'Title', 'anspress-question-answer' );

		if ( taxonomy_exists( 'question_category' ) ) {
			$columns['question_category'] = __( 'Category', 'anspress-question-answer' );
		}

		if ( taxonomy_exists( 'question_tag' ) ) {
			$columns['question_tag'] = __( 'Tag', 'anspress-question-answer' );
		}

		$columns['status']   = __( 'Status', 'anspress-question-answer' );
		$columns['answers']  = __( 'Ans', 'anspress-question-answer' );
		$columns['comments'] = __( 'Comments', 'anspress-question-answer' );
		$columns['votes']    = __( 'Votes', 'anspress-question-answer' );
		$columns['flags']    = __( 'Flags', 'anspress-question-answer' );
		$columns['date']     = __( 'Date', 'anspress-question-answer' );

		return $columns;
	}