<?php include('includes/config/config.php'); $labels = array(); $data = array(); $ohc_id = $_SESSION['current_ohcttype']; $sql_query = "SELECT ti.item_name, COUNT(si.item_id) + COUNT(t.item_id) as count FROM stock_issue_items si LEFT JOIN tbl_items ti ON si.item_id = ti.item_id LEFT JOIN treatment t ON si.item_id = t.item_id WHERE ti.ohc_type_id = ? GROUP BY ti.item_id ORDER BY count DESC LIMIT 0,10"; $stmt = mysqli_prepare($conn, $sql_query); if (!$stmt) { error_log("Error preparing statement: " . mysqli_error($conn)); die(); } mysqli_stmt_bind_param($stmt, "s", $ohc_id); mysqli_stmt_execute($stmt); $result = mysqli_stmt_get_result($stmt); while ($row = mysqli_fetch_assoc($result)) { $name = $row['item_name']; $count = $row['count']; $labels[] = $name; $data[] = $count; } mysqli_stmt_close($stmt); $response = array( 'labels' => $labels, 'data' => $data ); echo json_encode($response);