PHPMailer for registration

source/Server/createuser.php

@@ -1,6 +1,12 @@
 <?php
-    require './helpers.php';
+    use PHPMailer\PHPMailer\PHPMailer;
+    use PHPMailer\PHPMailer\Exception;
 
+    require './helpers.php';
+    require './PHPMailer/src/Exception.php';
+    require './PHPMailer/src/PHPMailer.php';
+    require './PHPMailer/src/SMTP.php';
+
     $db = connectToDB();
     $db->begin_transaction();
 
@@ -36,13 +42,41 @@
     $success = false;
     if ($db->query("INSERT INTO user (ID, NAME, PW_HASH, EMAIL_HASH, SALT, ACTIVATION_CODE, FLAGS, TIMESTAMP) 
         VALUES (NULL, '".addslashes($userName)."', '".addslashes($pwHash)."', '".addslashes($emailHash)."', '".addslashes($salt)."', '$activationCode', 0, NULL)")) {
-        $success = true;
-
-        mail(
-            $email,
-            "Artificial Life Environment: confirmation code for user '" . addslashes($userName) . "'",
-            "Your confirmation code for user '".addslashes($userName)."' is:\n\n" . $activationCode,
-            "From: user registration <[email protected]>");
+        $mail = new PHPMailer(true);                              // Passing `true` enables exceptions
+        try {
+            //Server settings
+            //$mail->SMTPDebug = 2;                                 // Enable verbose debug output
+            $mail->isSMTP();                                      // Set mailer to use SMTP
+            $mail->Host = 'alfa3211.alfahosting-server.de';                  // Specify main and backup SMTP servers
+            $mail->SMTPAuth = true;                               // Enable SMTP authentication
+            $mail->Username = '[username]';             // SMTP username
+            $mail->Password = '[password]';                           // SMTP password
+            $mail->SMTPSecure = 'ssl';                            // Enable SSL encryption, TLS also accepted with port 465
+            $mail->Port = 465;                                    // TCP port to connect to
+
+            //Recipients
+            $mail->setFrom('[email protected]', 'User registration');          //This is the email your form sends From
+            $mail->addAddress($email, ''); // Add a recipient address
+            //$mail->addAddress('[email protected]');               // Name is optional
+            //$mail->addReplyTo('[email protected]', 'Information');
+            //$mail->addCC('[email protected]');
+            //$mail->addBCC('[email protected]');
+
+            //Attachments
+            //$mail->addAttachment('/var/tmp/file.tar.gz');         // Add attachments
+            //$mail->addAttachment('/tmp/image.jpg', 'new.jpg');    // Optional name
+
+            //Content
+            $mail->isHTML(true);                                  // Set email format to HTML
+            $mail->Subject = "Artificial Life Environment: confirmation code for user '" . addslashes($userName) . "'";
+            $mail->Body    = "Your confirmation code for user '".addslashes($userName)."' is:\n\n" . $activationCode;
+            //$mail->AltBody = 'This is the body in plain text for non-HTML mail clients';
+
+            $mail->send();
+            $success = true;
+        } catch (Exception $e) {
+            $success = false;
+        }
     }
     echo json_encode(["result"=>$success]);