PHP REST API CRUD – Step 10

Step 10 Create API for update data

• Create a new file called update_user.php in user folder and Following steps to be performed for this

1. We need to set headers on this new file.

2.  Connect to database and register table

3.  Assign submitted data to object properties

4.  Use the update method

<?php
// required headers
header("Access-Control-Allow-Origin: *");
header("Content-Type: application/json; charset=UTF-8");
header("Access-Control-Allow-Methods: POST");
header("Access-Control-Max-Age: 3600");
header("Access-Control-Allow-Headers: Content-Type, Access-Control-Allow-Headers, Authorization, X-Requested-With");

// files needed to connect to database
include '../config/database.php';
include '../objects/user.php';

// get database connection
$database = new Database();
$db = $database->getConnection();

// instantiate user object
$user = new User($db);

// get posted data
$json = json_encode($_POST);
$data = json_decode($json);

echo json_encode(array("data" => $data, "id" => $_GET["id"]));
// make sure data is not empty
if (
    !empty($data->name) &&
    !empty($data->email) &&
    !empty($data->password)
) {

    // set data property values
    $user->name = $data->name;
    $user->email = $data->email;
    $user->password = $data->password;

    // update the data
    if ($user->update($_GET["id"])) {

        // set response code - 201 created
        http_response_code(201);
        // tell the user
        echo json_encode(array("message" => "user data is updated."));
    }
    // if unable to create the data, tell the user
    else {
        // set response code - 503 service unavailable
        http_response_code(503);
        // tell the user
        echo json_encode(array("message" => "Unable to update data."));
    }
}

// tell the user data is incomplete
else {
    // set response code - 400 bad request
    http_response_code(400);
    // tell the user
    echo json_encode(array("message" => "Unable to update data. Data is incomplete."));
}