How can I get a PHP variable to AJAX?

Question

I don\'t think I am passing the variable the right way between my separate PHP and AJAX files.

I am debugging this by triggering the second condition $status =

Answer 1

Good to use json while return back data from php to ajax.

$return_data = array();
if (condition){
   $return_data['status'] = 'success';
} else {
    $return_data['status'] = 'info';
}

echo json_encode($return_data);
exit();

Now, if you are return back json data to ajax, then you need to specify return data type into ajax call as below

function send() {
var data = $('#signup_form').serialize();
    $.ajax({
        type: "POST",
        url: "signup_process.php",
        data: data,
        dataType: 'json', 
        success: function (data) {
        alert(data.status);
            if (data.status == 'success') {
                // everything went alright, submit
                $('#signup_form').submit();
            } else if (data.status == 'info')
            {
                console.log(data.status);
                $("label#email_error").show(); 
                return false; 
            }
        }
    });
    return false;
};