Question

I send Ajax request using GET. One of the parameters (to) is lost and cannot be retrieved on the called file using $_GET[“to”].

Now what is the problem ? Some of file working well with this function !

function SendEmail(To, Subject, Message) 
{
var URL = 'mail-service.php?&msg=' + escape(Message) + 'to=' + escape(To) + '&subject=' + escape(Subject);
$.ajax({
    url: URL,
    type: 'GET',
    success: function (res) {
        alert("Message Sent to : " + res);
    }
});
} 

Answer 1

check yout ajax url get parameter I think you forget adding &

var URL = 'mail-service.php?&msg=' + escape(Message) + '&to=' + escape(To) + '&subject=' + escape(Subject);