diff --git a/Config/Autoload.php b/Config/Autoload.php
index 6f2118a8..4f0d043b 100644
--- a/Config/Autoload.php
+++ b/Config/Autoload.php
@@ -4,6 +4,9 @@ class Autoload
 {
         private static $_instance = null;
 
+        /**
+         * If the class is not already loaded, then load it.
+         */
         public static function charger()
     {
         if(null !== self::$_instance) {
@@ -18,6 +21,9 @@ class Autoload
         }
     }
 
+        /**
+         * If the instance is not null, unregister the autoload function and set the instance to null.
+         */
         public static function shutDown()
     {
         if(null !== self::$_instance) {
@@ -30,6 +36,11 @@ class Autoload
         }
     }
 
+        /**
+         * If the file exists, include it
+         * 
+         * @param class The name of the class to load.
+         */
         private static function _autoload($class)
     {
         global $rep;
diff --git a/Config/Connection.php b/Config/Connection.php
index a8561e0b..6b1e9241 100644
--- a/Config/Connection.php
+++ b/Config/Connection.php
@@ -3,12 +3,29 @@ class Connection extends SQLite3
 {
     private $stmt;
     private $result;
+
+    /**
+     * The function __construct() is a constructor function that takes a parameter  and calls the
+     * open() function with the parameter 
+     * 
+     * @param dsn The Data Source Name, or DSN, contains the information required to connect to the
+     * database.
+     */
     function __construct($dsn)
     {
         $this->open($dsn);
         $this->enableExceptions(true);
     }
 
+    /**
+     * It takes a query and an array of parameters, binds the parameters to the query, and executes the
+     * query
+     * 
+     * @param string query The query to execute.
+     * @param array parameters
+     * 
+     * @return bool The result of the query.
+     */
     public function executeQuery(string $query, array $parameters = []): bool
     {
         $this->stmt = parent::prepare($query);
@@ -25,6 +42,12 @@ class Connection extends SQLite3
         }
     }
 
+
+    /**
+     * It takes the result of a query and returns an array of arrays
+     * 
+     * @return array An array of arrays.
+     */
     public function getResults(): array
     {
         $resultArray = $this->result->fetchArray(SQLITE3_ASSOC);
diff --git a/Config/Nettoyage.php b/Config/Nettoyage.php
index 8f85c7fb..3778a674 100644
--- a/Config/Nettoyage.php
+++ b/Config/Nettoyage.php
@@ -1,19 +1,28 @@
 <?php
 Class Nettoyage{
-    public function clean($input)
+    /**
+     * It takes a string, trims it, strips it of HTML tags, and returns the string
+     * 
+     * @param string input The string to be cleaned.
+     * 
+     * @return string The output of the function.
+     */
+    public function clean(string $input) : string
     {
-        // Supprime les espaces en début et fin de chaîne
         $output = trim($input);
-
-        // Supprime les balises HTML
         $output = strip_tags($output);
-
-        // Supprime les caractères spéciaux
         // $output = htmlspecialchars($output);
 
         return $output;
     }
-    public function cleanEmail($input){
+    /**
+     * It takes a string, cleans it, then sanitizes it as an email.
+     * 
+     * @param string input The input to be cleaned.
+     * 
+     * @return string The output is being returned.
+     */
+    public function cleanEmail(string $input) : string{
         $output = $this->clean($input);
         $output = filter_var($output, FILTER_SANITIZE_EMAIL);
         return $output;
diff --git a/Config/Validation.php b/Config/Validation.php
index d5896884..45edef55 100644
--- a/Config/Validation.php
+++ b/Config/Validation.php
@@ -2,6 +2,11 @@
 
 class Validation
 {
+    /**
+     * If the variable is set, return true, otherwise return false.
+     * 
+     * @param var The variable you want to check if it's set.
+     */
     public function ValidateSet($var) :bool{
         if (isset($var)) {
             return true;
@@ -9,6 +14,11 @@ class Validation
         return false;
     }
 
+    /**
+     * If the variable is empty, return false. Otherwise, return true.
+     * 
+     * @param var The variable to be validated.
+     */
     public function ValidateNotEmpty($var) :bool{
         if (empty($var)) {
             return false;
@@ -16,6 +26,13 @@ class Validation
         return true;
     }
 
+    /**
+     * If the URL is not a valid URL, return false. Otherwise, return true.
+     * 
+     * @param string url The URL to be validated.
+     * 
+     * @return bool A boolean value.
+     */
     public function ValidateURL(string $url) :bool{
         if (!preg_match("/\b(?:(?:https?|ftp):\/\/|www\.)[-a-z0-9+&@#\/%?=~_|!:,.;]*[-a-z0-9+&@#\/%=~_|]/i",$url)) {
             return false;
@@ -23,12 +40,27 @@ class Validation
         return true;
     }
 
+    /**
+     * It checks if the email is valid.
+     * 
+     * @param string email The email address to validate.
+     * 
+     * @return bool A boolean value.
+     */
     public function ValidateEmail(string $email) :bool{
         if (!filter_var($email, FILTER_VALIDATE_EMAIL)) {
             return false;
         }
         return true;
     }
+
+    /**
+     * It returns true if the username is valid, and false if it isn't.
+     * 
+     * @param string username The username to validate.
+     * 
+     * @return bool A boolean value.
+     */
     public function ValidateUsername(string $username) : bool{
       
         // if(!filter_var($username,FILTER_VALIDATE_REGEXP,array("options" => array( "regexp" => "^[^&=_'\-+;<>.]{1,18}$" ))))
@@ -37,6 +69,14 @@ class Validation
         // }
         return true;
     }
+
+    /**
+     * If the password is longer than 100 characters, return false. Otherwise, return true.
+     * 
+     * @param string password The password to validate.
+     * 
+     * @return bool A boolean value.
+     */
     public function ValidatePassword(string $password) : bool{
         if(strlen($password)>100)
         {
@@ -44,6 +84,23 @@ class Validation
         }
         return true;
     }
+
+    /**
+     * It checks if the length of the strings are less than 250 characters and if the resolution time
+     * and points are positive
+     * 
+     * @param string name The name of the enigma
+     * @param string statement The statement of the enigma
+     * @param string help Help text for the enigma
+     * @param string reminder a reminder of the enigma
+     * @param string example 
+     * @param string solution The solution to the enigma
+     * @param string test the test to be run on the solution
+     * @param string resolutionTime the time it takes to solve the enigma
+     * @param int points
+     * 
+     * @return bool a boolean value.
+     */
     public function ValidateEnigme(string $name,string $statement,string $help,string $reminder,string $example,string $solution,string $test, string $resolutionTime, int $points) : bool{
         if(strlen($name)>50 || strlen($statement) > 250 || strlen($help) > 250 || strlen($reminder) > 250 || strlen($example) > 250 || strlen($solution) > 250 || strlen($test) > 250 || $resolutionTime < 0 || $points < 0)
             return false;
diff --git a/Controller/AdminController.php b/Controller/AdminController.php
index 4c6c6328..ab37dc1b 100644
--- a/Controller/AdminController.php
+++ b/Controller/AdminController.php
@@ -145,6 +145,10 @@ class AdminController extends UserController
         }
     }
 
+    /**
+     * It gets the enigme from the database and displays it
+     * in the enigme page.
+     */
     public function goToEnigme()
     {
         try {
@@ -162,6 +166,11 @@ class AdminController extends UserController
         }
     }
 
+    /**
+     * It gets the enigmas from the database and sorts them by their order
+     * and displays them in the admin page.
+     * 
+     */
     public function goToAdmin()
     {
         try {
@@ -178,6 +187,7 @@ class AdminController extends UserController
             require($rep . $vues['erreur']);
         }
     }
+
     public function goToAddEnigmeSolo()
     {
         try {
@@ -188,6 +198,7 @@ class AdminController extends UserController
             require($rep . $vues['erreur']);
         }
     }
+    
     public function goToAddEnigmeMulti(){
         try {
             global $rep, $vues;
@@ -291,6 +302,10 @@ class AdminController extends UserController
             require($rep . $vues['erreur']);
         }
     }
+    /**
+     * When the user clicks on the button, the function enigmeEnded() is called, which will display the
+     * next enigma.
+     */
     public function enigmeEnded(){
         try{
             global $rep, $vues;
@@ -303,6 +318,7 @@ class AdminController extends UserController
             require($rep . $vues['erreur']);
         }
     }
+
     public function editEnigme()
     {
         try{
@@ -336,6 +352,7 @@ class AdminController extends UserController
             require($rep . $vues['erreur']);
         }
     }
+
     public function deleteEnigme(){
         try{
             global $rep, $vues;
@@ -437,6 +454,7 @@ class AdminController extends UserController
             require($rep . $vues['erreur']);
         }
     }
+    
     public function report(){
         try{
             global $rep, $vues;
diff --git a/Controller/EnigmeGateway.php b/Controller/EnigmeGateway.php
index d071859f..a6ae2da7 100644
--- a/Controller/EnigmeGateway.php
+++ b/Controller/EnigmeGateway.php
@@ -107,7 +107,8 @@ class EnigmeGateway
      * 
      * @return array of objects.
      */
-    public function findSoloEnigma(){
+    public function findSoloEnigma() : array
+    {
         $query = "SELECT * FROM Enigme
         WHERE points IS NULL OR points = 0";
         $this->con->executeQuery($query);
@@ -115,7 +116,7 @@ class EnigmeGateway
         return $tabEnigme;
     }
 
-    public function findEnigmaFromPartie(string $idPartie){
+    public function findEnigmaFromPartie(string $idPartie) : array{
         $query = "SELECT * FROM Enigme e, Contenir c
         WHERE c.partie=:idPartie";
         $this->con->executeQuery($query, array(
diff --git a/Controller/PartieGateway.php b/Controller/PartieGateway.php
index 44dbb40a..c1c803a7 100644
--- a/Controller/PartieGateway.php
+++ b/Controller/PartieGateway.php
@@ -47,7 +47,7 @@ class PartieGateway
         return $partie;
     }
 
-    public function findPartieInQueue()
+    public function findPartieInQueue() : int
     {
         $query = "SELECT partie
         FROM Participer
@@ -61,7 +61,7 @@ class PartieGateway
         return $results[0]['partie'];
     }
 
-    public function creerPartieSolo(Utilisateur $utilisateur)
+    public function creerPartieSolo(Utilisateur $utilisateur) 
     {
         $query = "SELECT * FROM Enigme
         WHERE points IS NULL OR points = 0";
@@ -269,7 +269,7 @@ class PartieGateway
         $row = $results[0];
         return $row['count(*)'];
     }
-    public function getEtat($idPartie){
+    public function getEtat($idPartie) : int{
         $query = "SELECT etat FROM Participer WHERE partie = :idPartie";
         $this->con->executeQuery($query, array(
             "idPartie" => array($idPartie, SQLITE3_INTEGER)
@@ -287,7 +287,7 @@ class PartieGateway
         return 0;
     }
 
-    public function getLesMailJoueurs($idPartie){
+    public function getLesMailJoueurs($idPartie) : array{
         $query = "SELECT utilisateur FROM Participer WHERE partie = :idPartie";
         $this->con->executeQuery($query, array(
             "idPartie" => array($idPartie, SQLITE3_INTEGER)
@@ -300,7 +300,7 @@ class PartieGateway
         }
         return $lesJoueurs;
     }
-    public function getLesIdEnigmes($idPartie){
+    public function getLesIdEnigmes($idPartie) : array{
         $query = "SELECT enigme FROM Contenir WHERE partie = :idPartie";
         $this->con->executeQuery($query, array(
             "idPartie" => array($idPartie, SQLITE3_INTEGER)
@@ -349,6 +349,11 @@ class PartieGateway
         $date = new DateTime ($results[0]['dateDebut']);
         return $date;
     }
+    /**
+     * It updates the state of a game to 2 (ended) in the database
+     * 
+     * @param int idPartie the id of the game
+     */
     public function endGame(int $idPartie){
         $query = "UPDATE Participer SET etat = 2 WHERE partie = :idPartie";
         $this->con->executeQuery($query, array(
@@ -356,6 +361,11 @@ class PartieGateway
         )
         );
     }
+    /**
+     * It updates the state of a game from 0 to 1.
+     * 
+     * @param int idPartie the id of the game
+     */
     public function launchGame(int $idPartie){
         $query = "UPDATE Participer SET etat=1 WHERE etat=0 AND partie=:partie";
         $this->con->executeQuery($query,array(
@@ -373,6 +383,11 @@ class PartieGateway
         }
         return true;
     }
+    /**
+     * It updates the dateDebut column of the Partie table with the current date and time.
+     * 
+     * @param int idPartie
+     */
     public function majDateDebut(int $idPartie){
         $query = "UPDATE Partie SET dateDebut = :dateDebut WHERE id = :idPartie";
         $this->con->executeQuery($query, array(
@@ -381,6 +396,7 @@ class PartieGateway
         )
         );
     }
+    
     public function quitQueue(string $mailUtilisateur,int $idPartie){
         $query = "DELETE FROM Participer 
         WHERE utilisateur = :mailUtilisateur 
diff --git a/Controller/ResoudreGateway.php b/Controller/ResoudreGateway.php
index e5c1b502..a4a58de9 100644
--- a/Controller/ResoudreGateway.php
+++ b/Controller/ResoudreGateway.php
@@ -127,7 +127,7 @@ class ResoudreGateway
                 "ended" => array($ended, SQLITE3_INTEGER)));
         }
     }
-    public function checkEnigmeIsEnded(string $mailUtilisateur, int $enigmeId){
+    public function checkEnigmeIsEnded(string $mailUtilisateur, int $enigmeId) : bool{
         $query="SELECT * FROM Resoudre
         WHERE utilisateur=:utilisateur
         AND enigme=:enigme";
@@ -144,7 +144,7 @@ class ResoudreGateway
             return $results[0]['ended'];
         }
     }
-    public function checkEnigmeIsEndedInPartie(string $mailUtilisateur, int $enigmeId, int $idPartie){
+    public function checkEnigmeIsEndedInPartie(string $mailUtilisateur, int $enigmeId, int $idPartie) : bool{
         $query="SELECT * FROM Resoudre
         WHERE utilisateur=:utilisateur
         AND enigme=:enigme
diff --git a/Controller/UserController.php b/Controller/UserController.php
index ecf0c7a1..f86fa7bc 100644
--- a/Controller/UserController.php
+++ b/Controller/UserController.php
@@ -384,8 +384,7 @@ class UserController
             require($rep . $vues['erreur']);
         }
     }
-
-    // A appeler après avoir vérifié que la partie est finie
+    
     public function endGame(){
         try {
             global $rep, $vues, $error;
diff --git a/Controller/UtilisateurGateway.php b/Controller/UtilisateurGateway.php
index 6647a576..9ab95fc9 100644
--- a/Controller/UtilisateurGateway.php
+++ b/Controller/UtilisateurGateway.php
@@ -139,7 +139,7 @@ class UtilisateurGateway
             return true;
     }
 
-    public function queueFilled(){
+    public function queueFilled() : bool{
         $query = "SELECT count(*) FROM Participer WHERE etat=0";
         $this->con->executeQuery($query);
         if ($this->con->getResults()[0]['count(*)'] >= 2)
diff --git a/Factory/EnigmeFactory.php b/Factory/EnigmeFactory.php
index cb0d3b2e..73e36b93 100644
--- a/Factory/EnigmeFactory.php
+++ b/Factory/EnigmeFactory.php
@@ -1,6 +1,6 @@
 <?php
 class EnigmeFactory{
-    public static function create($results)
+    public static function create($results) : array
     {
         $tabEnigme=array();
         foreach($results as $row)
diff --git a/Factory/UtilisateurFactory.php b/Factory/UtilisateurFactory.php
index 860f6d63..322547f3 100644
--- a/Factory/UtilisateurFactory.php
+++ b/Factory/UtilisateurFactory.php
@@ -2,7 +2,7 @@
 
 class UtilisateurFactory
 {
-    public static function createUtilisateur(array $results){
+    public static function createUtilisateur(array $results) : Utilisateur{
         if ($results == null){
             return new Utilisateur("null", "null", "null", false);
         }
@@ -15,7 +15,7 @@ class UtilisateurFactory
         }
         return new Utilisateur($email, $pseudo, $mdp, $estAdmin);
     } 
-    public static function createTabUtilisateur(array $results){
+    public static function createTabUtilisateur(array $results) : array{
         $tabUtilisateur=array();
         foreach($results as $row)
         {
diff --git a/index.php b/index.php
index 65158e1e..b2d502c1 100644
--- a/index.php
+++ b/index.php
@@ -1,16 +1,8 @@
 <?php
 require_once('./Config/Config.php');
 require_once('./Config/Autoload.php');
-Autoload::charger();
-global $vues, $rep;
-echo 'index.php';
-require($rep.$vues['main']);
-$control = new FrontController();
 
-//session_regenerate_id(true);
-// session_unset();
-// session_destroy();
-// $_SESSION = null;
+Autoload::charger();
 
-//https://a-pellegrini.developpez.com/temp/tutoriels/php/security/session/#III.2
+$control = new FrontController();
 ?>
\ No newline at end of file