diff --git a/2020-2021/TD2/index.php b/2020-2021/TD2/index.php
index 4d44484..2462a1e 100755
--- a/2020-2021/TD2/index.php
+++ b/2020-2021/TD2/index.php
@@ -108,7 +108,7 @@ function generatePsw(String $s) : String {
 <html>
 
 <head>
-    <title>M314 - TD1</title>
+    <title>M314 - TD2</title>
     <link rel="icon" type="image/png" href="https://www.junkjumper-projects.com/umming_lines_paint.png" />
     <h1>M314 - TD2 : Manipulation des boucles, expressions conditionnelles et introduction aux tables globales</h1>
     <meta charset="UTF-8" />
diff --git a/2020-2021/TD3/check.php b/2020-2021/TD3/check.php
index c48aacf..541e2af 100644
--- a/2020-2021/TD3/check.php
+++ b/2020-2021/TD3/check.php
@@ -74,6 +74,8 @@ if ($checkE && $checkN) {
     echo '<p id="rep">Bonjour ' . $denom . ' ' . $tab['nom'] . ' ' . $tab['prenom'] . ',<br /> 
         Nous vous remercions d’avoir commandé ' . $v . '<br />'
         . 'Un mail de conformation vous a été envoyé à l’adresse : ' . $tab['email'] . '</p>';
+} else {
+    echo "NIKTONKU";
 }
 
 
diff --git a/2020-2021/TD3/index.php b/2020-2021/TD3/index.php
index c188618..273a457 100755
--- a/2020-2021/TD3/index.php
+++ b/2020-2021/TD3/index.php
@@ -15,7 +15,7 @@ file_put_contents('./voiture.txt', "");
 <html>
 
 <head>
-    <title>M314 - TD1</title>
+    <title>M314 - TD3</title>
     <link rel="icon" type="image/png" href="https://www.junkjumper-projects.com/umming_lines_paint.png" />
     <h1>M314 - TD3 : Manipulation des boucles, expressions conditionnelles et introduction aux tables globales</h1>
     <meta charset="UTF-8" />
diff --git a/2020-2021/TD4/TP4-eno.pdf b/2020-2021/TD4/TP4-eno.pdf
new file mode 100644
index 0000000..d33ccd0
Binary files /dev/null and b/2020-2021/TD4/TP4-eno.pdf differ
diff --git a/2020-2021/TD4/Voitures.txt b/2020-2021/TD4/Voitures.txt
new file mode 100755
index 0000000..8d7722a
--- /dev/null
+++ b/2020-2021/TD4/Voitures.txt
@@ -0,0 +1,5 @@
+Renault	Peugeot	Citroen	Volkswagen
+Twingo	107	C1	Lupo
+Clio	207	C3	Polo
+Megane	308	C4	Golf
+Laguna	508	C5	Passat
diff --git a/2020-2021/TD4/index.php b/2020-2021/TD4/index.php
new file mode 100755
index 0000000..55c1f43
--- /dev/null
+++ b/2020-2021/TD4/index.php
@@ -0,0 +1,84 @@
+<!DOCTYPE html>
+<?php
+/**
+ * @Author: JunkJumper
+ * @Link: https://github.com/JunkJumper
+ * @Copyright: Creative Common 4.0 (CC BY 4.0)
+ * @Create Time: 05-10-2020 10:26
+ * @Description: M314 - TD3
+ */
+
+
+$entree = "./Voitures.txt";
+
+function openFile($input) {
+    $voitures = fopen($input, "r");
+    $lecture = file($input);
+}
+
+function closeFile($input) {
+    fclose($input);
+}
+
+function displayLines($input) {
+    openFile($input);
+
+    while(! feof($input)) {
+        $line = fgets($input);
+        echo $line. '<br />';
+    }
+}
+
+?>
+
+<html>
+
+<head>
+    <title>M314 - TD4</title>
+    <link rel="icon" type="image/png" href="https://www.junkjumper-projects.com/umming_lines_paint.png" />
+    <h1>M314 - TD4 – Manipulation de fichiers et de répertoire</h1>
+    <meta charset="UTF-8" />
+</head>
+
+<?php
+    echo displayLines($entree);
+?>
+
+<body>
+    <a href="..">
+        <button class="button blue">Retour à la page précédente</button>
+    </a>
+</body>
+
+<style>
+    h1, h2, h3, h4, h5, h6 {
+        color: #4c6e8a;
+    }
+
+    .button {
+        border: none;
+        color: white;
+        padding: 15px 32px;
+        text-align: center;
+        text-decoration: none;
+        display: inline-block;
+        font-size: 16px;
+        margin: 4px 2px;
+        cursor: pointer;
+    }
+
+    .blue {
+        background-color: #4c6e8a;
+    }
+
+    b {
+        color: red;
+    }
+
+	strong.mandatory {
+		color : red;
+	}
+</style>
+
+
+</html>
\ No newline at end of file
