3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php /* Priatek Vending PHP Server-Side * Checks POST requests. It checks a 'tag' in a post response, and looks * for other tag-specific data. Tag if one of the following, along with the * other required data: * * Tag Other Tag 1 Other Tag 2 * ========================================== * login | ID OR user_name | password * logout | ID OR user_name | * getTickets | user_name | * addTickets | user_name | tickets * subTickets | user_name | tickets * * Other Tag Descriptions * ========================================== * user_name : ther user's name on the databae in the user_name column * ID : the user's ID in the ID column * password : the contents of the pass_hash column * ticket : an integer of the number of tickets to add or remove * * Brief Explinations * ========================================== * login - User to lookup and mark a user a logged in * logout - Logout a user setting a boolean "loggedin" in the databse. * getTickets - Return a user's tickets * addTickets - Add to a user's tickets * subTickets - Subtract from a user's tickets * viewLogs - Return the first ten entires in the adminlogs and redemptionstable */ //Echos an error message, given a tag, back to the user function sendError($tag, $message) { $response = array("tag" => $tag, "error" => TRUE); $response['error_msg'] = $message; echo json_encode($response); } if (isset($_POST['tag']) && $_POST['tag'] != '') { require_once 'include/DB_Functions.php'; $db = new DB_Functions(); //object of the class containing all the functions //response Array. Will be json_encode'd sent back $tag = $_POST['tag']; $response = array("tag" => $tag, "error" => FALSE); /********response when tag == login*************/ if ($tag == 'login') { // Request type is check Login $id = $_POST['ID']; $username = $_POST['user_name']; $password = $_POST['password']; $machinesID = $_POST["machinesID"]; $itemsID = $_POST["itemsID"]; // Lookup by either username, or ID $user = $db->loginUserByPassword($id, $username, $password, $machinesID); if ($user != false) { //Record was found $response["user"]["tickets"] = $user["tickets"]; $response["error"] = FALSE; $response["user"]["name"] = $user["name"]; $response["user"]["id"] = $user["ID"]; $response["user"]["created_at"] = $user["created_at"]; $response["user"]["updated_at"] = $user["updated_at"]; echo json_encode($response); } else { //record was not found sendError($tag, "Incorrect id or password!"); } } /********response when tag == ViewLogs*************/ else if ($tag == 'viewLogs') { $id = $_POST["id"]; $logs = $db->getMachineLogs($id); if($logs != FALSE) { $response["logs"] = $logs; echo json_encode($response); } else { sendError($tag, "Error retrieving logs"); } } /********response when tag == addTickets*************/ else if ($tag == 'addTickets') { //TODO: add a restrain, if the user doesnt exist tickets cannot be adde $user_name = $_POST["user_name"]; $tickets = $_POST["tickets"]; $currentBalance = $db->getTickets($user_name); $newBalance = $currentBalance["tickets"] + $tickets; if($db->addTickets($user_name, $tickets)){ $response["newBalance"]= $newBalance; echo json_encode($response); } else { sendError($tag, "processing error"); } } /********response when tag == subTickets*************/ else if ($tag == 'subTickets'){ //TODO: add a restrain, if the user doesnt exist tickets cannot be subtracted $user_name = $_POST["user_name"]; $tickets = $_POST["tickets"]; $machinesID = $_POST["machinesID"]; $itemsID = $_POST["itemsID"]; $currentBalance = $db->getTickets($user_name, $machinesID, $itemsID); $newBalance = $currentBalance["tickets"] - $tickets; if($newBalance > 0) { if($db->subTickets($user_name, $tickets)) { $response["newBalance"]= $newBalance; echo json_encode($response); } else { sendError($tag, "processing error"); } } else { sendError($tag, "Subtracting tickets will result in a negative value!"); } } /******** response when tag == getTickets *************/ else if ($tag == 'getTickets') { $user_name = $_POST["user_name"]; $balance = $db->getTickets($user_name); if($balance != FALSE) { $response["tickets"] = $balance["tickets"]; echo json_encode($response); } else { sendError($tag, "error processing the tickets"); } } /********response when tag == unknown*************/ else { sendError($tag, "Unknown tag given"); } /********response when tag == empty*************/ } else { sendError($tag, "Empty tag value given"); } ?>
Output for 5.4.0 - 7.2.0
Notice: Undefined variable: tag in /in/3aF6L on line 141 {"tag":null,"error":true,"error_msg":"Empty tag value given"}