Forsøger at lave php file_put til signup 2

mail.php

@@ -12,6 +12,7 @@ $lang = "da";
 $fi = file_get_contents("signup.csv");
 $fi.= $email;
 file_put_contents("signup.csv",$fi);
+print_r($fi);
  
  //$a = mail($to, $subject, $body);
  //print_r($email);