Question

I have a symfony Form into a Template:

Template.php

<form class="well" action="<?php echo url_for("@submitParam?param=".$con) ?>" method="post">
  <input type="text" name="param">
  <button type="submit" class="thisBtn">Button</button>
</form>

How can i pass a value from the HTML Input name="param" to the url or to the variable $con with jquery, javascript or with any other Ways(symfony or php) when pressing on the Submit Button?

Update :
You can also do it with AJAX:

$(".btn").live('click', function(){
        $.post("<?php echo url_for('@submitParam'); ?>", $('.box').serialize(), function(response) {
            switch(response.status) {
                case 'success':
                    console.log("Success");
                    break;
                case 'failure':
                    console.log("Failure");
                    break;
            }
        }, 'json');
        return false;
    });

Action :

$request->getParameter('param');

Answer 1

to send param value in url, use submit button

<input type="submit" class="thisBtn" value="button"/>

and change method to get

method="get"