call function url page with ajax

I have tried several times but it didn’t work. I want to call the function nama() on the dom_area.php page.

This is dom_area as target

<?php
    function nama()
    {
        echo $_POST['data_area'];
    }
?>

and this is the page where I call the function

<button id='acc'>asas</button>
<script>
    $(document).ready(function() {

        $('#acc').click(function() {

            let data_area = 2;
            let url_address = "<?= 'dom_area.php/nama()'; ?>";

            $.ajax({

                url:url_address,
                type:'post',
                data:{data_area:data_area} ,

            }).done(function(output){

                console.log(output);
                // alert(data);
            });
            // console.log(url);
        });

    });
</script>

Answer

You can only cause a php file to be launched, NOT a specific function within that script

However if you pass a parameter to control what to do in the script you can achieve what you are trying to do

<button id='acc'>asas</button>

<script>
$(document).ready(function(){
    $('#acc').click(function(){
        let data_area = 2;
        $.ajax({
            url:'dom_area.php',     // the script file name
            type:'post',
            // add a control parameter 
            data:{control:"Nama", data_area:data_area},
        }).done(function(output){

            console.log(output);
            // alert(data);
        });
        // console.log(url);
    });
});
</script>

Now in the PHP

<?php
function nama()
{
    echo $_POST['data_area'];
}


if ( $_SERVER['REQUEST_METHOD'] == 'POST' ) {
    // form was submitted

    switch($_POST['control'])
        case 'Nama':
            nama();
            break;
        default:
            echo json_encode(['status'=>'failed']);
    }
}
?>

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Answer