example_oauth.php

<?php

/**
 * This example shows how one would authorize a user with Discord via the oAuth2 flow and request their information
 * using the token. There are logs to show exactly the information that is generated.
 *
 * See https://discordapp.com/developers/docs/topics/oauth2
 * 
 * Use this as a guide only. It duplicates code for ease of assessibility.
 * 
 * Author:          Lachee
 * Last Updated:    Feb 2021
 * License:         MIT
*/


require "discord_oauth.php";

$redirectURL    = "http://127.0.0.1/discord/discord-php-kiss/example_oauth.php";    //The URL that the user will be redirect back too
$clientID       = "439410995987742720";                                             //The ID of the client
$clientSecret   = file_get_contents("client.key");                                  //The sensitive and secret key of the client
$scope          = "identify email guilds";                                          //Scoeps you wish to request, seperated by a space

//== STEP 1: Redirect them to the authorize url
//If we do not have a code, then we will redirect them
// The exit; is not required, but its a good explicit practice.
if (!isset($_GET['code'])) {
    discord_oauth_redirect($clientID, $scope, $redirectURL, true);
    exit;
}


//== STEP 2: Exchange the token
$auth = discord_oauth_exchange($clientID, $clientSecret, $scope, $redirectURL, $_GET['code']);
echo "<h3>Auth Response:</h3>"; var_dump($auth);  echo "<hr>";

if ($auth == null || !empty($auth['error'])) 
    die("Failed: Authorization was bad: " . $auth['error']);



//== STEP 3: Get the current user
$user = discord_oauth_get("/users/@me", $auth['access_token']);
echo "<h3>User Response:</h3>"; var_dump($user);  echo "<hr>";

if ($user == null || !empty($user['message']))
    die("Failed: /users/@me threw a error: " . $user['message']);



//== EXTRA: Get the guilds the user is in
$guilds = discord_oauth_get("/users/@me/guilds", $auth['access_token']);
echo "<h3>Guilds Response:</h3>"; var_dump($guilds);  echo "<hr>";

if ($guilds == null || !empty($guilds['message']))
    die("Failed: /users/@me/guilds threw a error: " . $guilds['message']);


//== FINALLY: Display the username
echo "Welcome " . $user['username'];
exit;