temp.php

<?php
// modules / PX_Orders / metadata / SearchFields . php
'range_date_start' => array( //range_<field_name>
	'query_type' => 'default',
	'enable_range_search' => true,
	'is_date_field' => true
) 
, 'start_range_date_start' => array( //start_range_<field_name>
	'query_type' => 'default',
	'enable_range_search' => true,
	'is_date_field' => true
) 
, 'end_range_date_start' => array( //end_range_<field_name>
	'query_type' => 'default',
	'enable_range_search' => true,
	'is_date_field' => true
) ,