AJAX update MYSQL database using function called from HTML generated from PHP

Question

I have a php page generating and displaying a table. for the last row in the table i want to display an image with an \'onclick\' function attached. this will send the usern

Answer 1

The jQuery.ajax() function expects an object to be passed; you need to use { and } to begin and end your object literal. What you currently have is invalid JavaScript syntax, if you checked your browser's developer tools you'd see an error indicating that. So:

$.ajax(
    url: "update.php",
    type: "POST",
    data: {
        'username': user,
        'liked': '1'
    },
    success: function () {
        alert("ok");
    }
);

should be

$.ajax({ // added {
    url: "update.php",
    type: "POST",
    data: {
        'username': user,
        'liked': '1'
    },
    success: function () {
        alert("ok");
    }
}); // added }