Send JS variable value to PHP

Question

So, I have a table where I display the database data. On each row there is a button where I added an event onClick , which calls a JS function and opens a modal. In this function, it passes the value that is in the attribute var-data:

<button data-var="<?php echo $cont; ?>" onClick="funcaoModal(this)" class="dropdown-item" data-toggle="modal" data-target="#modal-atualizar">Atualizar</button>

Within the function:

 function funcaoModal(element) {
        var dataVar = $(element).attr('data-var')
        alert(dataVar)

    }

I can visualize q it passes a certain value of "$cont", which would be the index of my Data Array coming from the database, because I want to do the following, send to the input ticket, for example, the value "<php $result[dataVar]['ticket]; ?>", but the problem is that you can’t put the variable dataVar within the PHP code...

It would work if I needed only 1 dice, because then I would already put the PHP code in the "data-var" button, move to the function, and send it to the modal. But I need a lot of information, so I’m sending the index number, because I can pull any data through it, but I can’t in any way concatenate the JS in PHP, or turn everything into JS.

Someone has a solution?

It can be: Assign various values to the button, and when clicked, it sends all to the function, which assigns to each Modal input Or a way to send only the index value to PHP, so that I concatenate the information to the call of the array, that way "<php $result[dataVar]['ticket]; ?>".

Does anyone have any solution?

Obs. I took the following test:

function funcaoModal(element) {
        var dataVar = $(element).attr('data-var')
        $('#ticket').val("<"+"?php echo $result[2]['ticket']?>")
    }

This sets the value in the modal "value", but for some reason it looks like this:

Instead of getting the value of "result", it picks up as a string, however, when I put the same chunk directly in the "value" of the modal, it returns the information of "result"

Answer 1

Although it’s not a good technique, just write inside the JS with PHP. Don’t forget that PHP requires ";" at the end of each line, unlike JS.

function funcaoModal(element) {
  var dataVar = $(element).attr('data-var')
  $('#ticket').val("<?php echo $result[2]['ticket']; ?>")
}