ohctech_p8/get_ambulance_usage.php

<?php
error_reporting(E_ERROR | E_PARSE);
include('includes/config/config.php');
//$sql="select a.*,b.* from requisition_items a inner join tbl_items b on a.item_id=b.item_id  where req_id='".$_POST['req_id']."' " ;


$sql = "SELECT a.ambulance_usage_id , c.patient_name , a.usage_date FROM ambulance_usage_details a INNER JOIN  patient_master c ON a.patient_id = c.id WHERE  `ambulance_id` = '" . $_REQUEST['id'] . "' ";
error_log($sql);
if (!$result_sql = @mysqli_query($conn, $sql)) {
	die(mysqli_error($conn));
}
$data = array();
if (mysqli_num_rows($result_sql) > 0) {
	while ($fetch = mysqli_fetch_assoc($result_sql)) {
		//extract($row);
		$data[] = $fetch;

	}
} else {
	$data['status'] = 200;
	$data['message'] = "Data not found!";
}

echo json_encode($data);
?>