无法从GET获取变量，但可以从var_dump（$ _ GET）;

Trying to use a simple AJAX call, where I can pass a variable around and display in the modal. That side works, however I cant retrieve the variable from the GET.

The following echo var_dump($_GET); ->

array(2) { ["VALUE I WANT"]=> string(0) "" ["_"]=> string(13) "1431441301242" }

However, $TempName = $_GET['Name']; returns no value?

AJAX:

$('#exampleModal').on('show.bs.modal', function (event) {
   var button = $(event.relatedTarget) // Button that triggered the modal
   var recipient = button.data('whatever') // Extract info from data-* attributes
   var modal = $(this);
   var dataString = recipient;


    $.ajax({ 
        type: "GET", 
        url: "/getEventDetails.php/", 
        data: dataString, 
        cache: false, 
        success: function (data) { 
            console.log(data); 
            console.log(dataString); 
            console.log(recipient); 
            $('.dash').html(data); 
        }, 
        error: function(err) { 
            console.log(err); 
        } 
    });  
})

You haven't assigned a name to your value in JS. PHP REQUIRES form submissions be in key=value format so it can built the _GET/_POST arrays. Since you haven't provided a name, there's no key for PHP to build the array with - no key, no value.

Try

data: {"foo":dataString}

then $_POST['foo'].

Alternatively, if you're sending over only a single value, then you can do

$value = file_get_contents('php://input');

to read the raw post data.

$('#exampleModal').on('show.bs.modal', function (event) {
  var button = $(event.relatedTarget) // Button that triggered the modal
  var recipient = button.data('whatever') // Extract info from data-* attributes
  var modal = $(this);
  var dataString = recipient;


$.ajax({ 
    type: "GET", 
    url: "/getEventDetails.php/", 
    data: {
        recipient: recipient
    }, 
    cache: false, 
    success: function (data) { 
        console.log(data); 
        console.log(dataString); 
        console.log(recipient); 
        $('.dash').html(data); 
    }, 
    error: function(err) { 
        console.log(err); 
    } 
});  

And in PHP you will get it as

$recipient = $_GET['recipient'];

Docs link.