Add url parameter via jquery and ajax

Question

I have a form that on submit I want to pass the email address value to the url as a parameter. How can I incorporate that into my current setup below:

<form action="/event/" method="POST" id="signupForm">

And here's my

$("#signupForm").submit(function(e) {
    e.preventDefault();
    var form = $(this);
    var email = $("#EmailAddress").val();

    $.ajax({
           type: "POST",
           url: form.attr('action'),
           data: form.serialize(),
           success: function(data)
           {
               console.log(data); //data contain response from your php script
               register_signup();
               form.replaceWith("<br /><p>Thanks for signing up!</p>");
           }
         });

});

Isma · Accepted Answer · 2019-09-09 08:47:43Z

2

You could just append it to the url:

$("#signupForm").submit(function(e) {
    e.preventDefault();
    var form = $(this);
    var email = $("#EmailAddress").val();

    $.ajax({
           type: "POST",
           url: form.attr('action') + '?email=' + email,
           data: form.serialize(),
           success: function(data)
           {
               console.log(data); //data contain response from your php script
               register_signup();
               form.replaceWith("<br /><p>Thanks for signing up!</p>");
           }
         });
});

In the server you will need to retrieve the data from the query string for the parameters in the URL and from POST for the data posted from your form:

parse_str($_SERVER['QUERY_STRING'], $query);
echo $query['email'];

And for post values just simply use $_POST['input_name'].

edited Sep 9, 2019 at 8:47

answered Sep 9, 2019 at 8:19

Isma

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2 Comments

Rob Over a year ago

Great thanks, wasn't sure on the syntax. If I understand it correctly, as it's ajax the page won't reload so the parameter doesn't show in the url, is that right? I'm trying to call a php file that then pulls in the parameter but it doesn't appear to pull it in.

Isma Over a year ago

See the edit, hope it helps. You might as well include the email in the form as a post value instead of adding it to the URL, no? If you don't want the users to see it just add it as a hidden field.

fdomn-m · Accepted Answer · 2019-09-09 10:48:08Z

1

As an alternative you can add an input field with hidden flag to your form and set its value to the email address before serializing.

edited Sep 9, 2019 at 10:48

fdomn-m

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answered Sep 9, 2019 at 8:51

Thallius

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Comments

Nijin P J · Accepted Answer · 2019-09-09 08:25:13Z

0

instead of using url: form.attr('action') use it like

url: "/event/?email="+email

OR

url: form.attr('action') + '?email=' + email

So,the ajax will be like

$("#signupForm").submit(function(e) {
  e.preventDefault();
  var form = $(this);
  var email = $("#EmailAddress").val();

$.ajax({
  type: "POST",
   url:  "/event/?email="+email, //OR  url: form.attr('action') + '?email=' + email,
   data: form.serialize(),
   success: function(data){}
 });

});

edited Sep 9, 2019 at 8:25

answered Sep 9, 2019 at 8:19

Nijin P J

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