如何在自动提交表单javascript中给出名称

A submit button is only going to be a successful control if it is used to submit the form (and even then only if it has a name and a value … which yours does not).

If you want submit=submit in your form data when you submit the form with JavaScript, then don't use a submit button to put that data in the form in the first place. Use a hidden input.

<input type="submit">
<input type="hidden" name="submit" id="submit" value="submit">

Then you have two other problems.

First, submit is a method of form elements, not inputs. So you need to change your script to call the right element.

<script>document.getElementById('submit').form.submit();</script>

Second, if a form has a control called submit then that will clobber the submit method. So you need to get one from a different form (not supported in old versions of Internet Explorer):

<script>
var form = document.getElementById('submit').form;
var submit_method = document.createElement("form").submit;
submit_method.call(form);
</script>

     <form id=submit action="<?php echo DOMAIN; ?>contact/booking-form.php" name="form1" method="post">
  <input type="text" name="name" value="<?php echo $name; ?>" />
    <input type="text" name="email" value="<?php echo $email; ?>" />

  </form>
<script >
        document.form1.submit()

    </script>

there is no sumit button in your code. first add in html

<input type="submit" value="submit" id="submit"/>
<script>
  document.getElementById("submit").value = "newSubmitButtonValue";
</script>