diff --git a/mvc_PSR4_twig/composer.json b/mvc_PSR4_twig/composer.json
index de876b8..0c6dfa6 100755
--- a/mvc_PSR4_twig/composer.json
+++ b/mvc_PSR4_twig/composer.json
@@ -1,6 +1,7 @@
 {
   "require": {
-    "twig/twig": "^3.0"
+    "twig/twig": "^3.0",
+    "ext-pdo": "*"
   },
   "autoload": {
     "psr-4": {
diff --git a/mvc_PSR4_twig/modeles/Connection.php b/mvc_PSR4_twig/modeles/Connection.php
new file mode 100644
index 0000000..da7062f
--- /dev/null
+++ b/mvc_PSR4_twig/modeles/Connection.php
@@ -0,0 +1,44 @@
+<?php
+
+namespace modeles;
+
+use PDO;
+
+class Connection extends PDO
+{
+    private $stmt; // pas typé, car peut être faux ou statement
+
+    /**
+     * @param string $dsn
+     * @param string $username
+     * @param string $password
+     */
+    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 to execute
+     * @param array $parameters to bind
+     * @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();
+    }
+
+    /**
+     * @return array
+     */
+    public function getResults(): array
+    {
+        return $this->stmt->fetchall();
+    }
+}
\ No newline at end of file
diff --git a/mvc_PSR4_twig/modeles/Flux.php b/mvc_PSR4_twig/modeles/Flux.php
new file mode 100644
index 0000000..e99d929
--- /dev/null
+++ b/mvc_PSR4_twig/modeles/Flux.php
@@ -0,0 +1,8 @@
+<?php
+
+namespace modeles;
+
+class Flux
+{
+
+}
\ No newline at end of file
diff --git a/mvc_PSR4_twig/modeles/FluxGateway.php b/mvc_PSR4_twig/modeles/FluxGateway.php
new file mode 100644
index 0000000..2ea0b83
--- /dev/null
+++ b/mvc_PSR4_twig/modeles/FluxGateway.php
@@ -0,0 +1,8 @@
+<?php
+
+namespace modeles;
+
+class FluxGateway
+{
+
+}
\ No newline at end of file
diff --git a/mvc_PSR4_twig/modeles/FluxModel.php b/mvc_PSR4_twig/modeles/FluxModel.php
new file mode 100644
index 0000000..fac3177
--- /dev/null
+++ b/mvc_PSR4_twig/modeles/FluxModel.php
@@ -0,0 +1,8 @@
+<?php
+
+namespace modeles;
+
+class FluxModel
+{
+
+}
\ No newline at end of file