diff --git a/script/Connection.php b/script/Connection.php
new file mode 100644
index 0000000..d46fbd7
--- /dev/null
+++ b/script/Connection.php
@@ -0,0 +1,32 @@
+<?php
+class Connection extends PDO { 
+
+private $stmt;
+
+public function __construct(string $dsn, string $username, string $password) { 
+	parent::__construct($dsn,$username,$password); 
+	$this->setAttribute(PDO::ATTR_ERRMODE, PDO::ERRMODE_EXCEPTION);
+} 
+ 
+
+/** * @param string $query 
+       * @param array $parameters * 
+       * @return bool Returns `true` on success, `false` otherwise 
+*/ 
+
+public function executeQuery(string $query, array $parameters = []) : bool{ 
+	$this->stmt = parent::prepare($query); 
+	foreach ($parameters as $name => $value) { 
+	 $this->stmt->bindValue($name, $value[0], $value[1]); 
+	} 
+
+	return $this->stmt->execute(); 
+}
+
+public function getResults() : array {
+ return $this->stmt->fetchall();
+
+}
+}
+
+?>
diff --git a/script/user.php b/script/user.php
index 7ec2b09..1a907c9 100644
--- a/script/user.php
+++ b/script/user.php
@@ -1,13 +1,11 @@
 <?php
 class User{
-    public string $id;
     public string $username;
     public string $passwd;
     public string $img;
     public string $email;
 
-    function __construct(string $identify, string $pseudo, string $password, string $image, string $mail) {
-        $this->id = $identify;
+    function __construct(string $pseudo, string $password, string $image, string $mail) {
         $this->username = $pseudo;
         $this->passwd = $password;
         $this->img = $image;
diff --git a/script/userGateway.php b/script/userGateway.php
new file mode 100644
index 0000000..6aa1478
--- /dev/null
+++ b/script/userGateway.php
@@ -0,0 +1,30 @@
+<?php
+include('Connection.php');
+include('user.php');
+
+Class UserGateway{
+    private Connection $con;
+
+    public function __construct(Connection $con){
+        $this->con=$con;
+    }
+
+    public function insert(USer $u):int{
+
+        // récupération id
+        $query='SELECT id_user FROM Users WHERE id_user >= ALL (SELECT id_user FROM User);';
+        $this->con->executeQuery($query);
+        $result=$this->con->getResults();
+        $id=$result['id_user'] + 1;
+
+        // insertion user
+        $query='INSERT INTO Users VALUES (id=:id,username=:username,email=:email,passwd=:passwd,CURRENT_DATE);';
+        $this->con->executeQuery($query,array(':id' => array($id,PDO::PARAM_INT),':username' => array($u->username,PDO::PARAM_STR),':email' => array($u->email,PDO::PARAM_STR),':passwd' => array($u->passwd,PDO::PARAM_STR)));
+        return $this->con->lastInsertId(); 
+    }
+}
+
+$u = new User("Test","1234","none","test@gmail.com");
+$uG = new UserGateway(new Connection("mysql:host=localhost;dbname=dbkemondejar","",""));
+$uG->insert($u);
+?>
\ No newline at end of file