How to call a specific function in a PHP script via Ajax?

Question

Lets say I have a file called functions.php, and it has two separate functions inside:

One would get the time

And the other would get the date

How will I

Answer 1

$(document).ready(function()
{
    $(".link").click(function()
    {
        var data['func'] = "time";
        var url  = functions.php
        $.get(url, data, function(result)
        {
            $("#feedback").html(result);
        });
    });
});

then your php file would be,

if(isset($_GET['func']))
{
    if($_GET['func'] == "time")
    {
        showTime();
    }
    else
    {
        showDate();
    }
}

function showTime()
{
    //show time
}

function showDate()
{
    //show date
}

Code is untested but should be a good starting point for you.