Add email verification code sending (close #3)

public/parts/verify.php

@@ -20,8 +20,17 @@ if (!empty($_POST['email'])) {
     $_SESSION['code'] = $code;
     $_SESSION['maybefamily'] = $database->get('families', 'familyid', ['email' => strtolower($_POST['email'])]);
 
-    // TODO: send email
-    file_put_contents("/var/www/html/code.txt", $code);
+    try {
+        $verification = new Email();
+        $verification->addTo(NOTIFICATION_TO);
+        $verification->setFrom(SMTP_FROMADDRESS, SMTP_FROMNAME);
+        $verification->setSMTP(SMTP_HOST, SMTP_PORT, SMTP_AUTH, SMTP_USERNAME, SMTP_PASSWORD, SMTP_SECURITY);
+        $verification->setSubject("HACHE email verification");
+        $verification->setBody("The verification code for renewing your HACHE membership is $code.");
+        $verification->send();
+    } catch (Exception $e) {
+        
+    }
 } else if (!empty($_POST['code'])) {
     if (empty($_SESSION['code'])) {
         header("Location: ./?page=renew&msg=sessionexpired");