<?php include '../connection.php'; try { $key = $_POST['key']; $statement = $db->prepare("select value from config where key = '$key'"); if(!$statement->execute()) { throw new Exception(implode(', ', $statement->errorInfo())); } $jsonResult = array( 'success' => true, 'value' => $statement->fetch(PDO::FETCH_COLUMN) ); } catch(Exception $e) { $jsonResult = array( 'success' => false, 'message' => $e->getMessage() ); } echo json_encode($jsonResult); ?>