How to call external PHP file in AJAX

Question

I have code to check username and password in test.php file.

But when I am calling this ajax it is always showing alert of wrong username and password.
Can anyone tell where I am going wrong?

$.ajax({
    type: "GET",
    url: 'http://externalurl/external/test.php',
    contentType: "text/html",
    data: 'uname=' + uname + '&pass=' + pass,
    success: function (data) {
        if (data == 'success') {
            alert('success');
        } else {
            alert('Wrong user name and password.Please try again');
        }
    }
});

"where I am going wrong?" => you're sending a password with GET. — James M
– James M, Commented May 19, 2012 at 11:01
check the net console in Firebug or Chrome's dev tool and see what's the actual response. Also, what James said — Damien Pirsy
– Damien Pirsy, Commented May 19, 2012 at 11:01
And you are not using an object for data which will cause problems on certain characters. Use data: {uname: uname, pass: pass} instead! — ThiefMaster
– ThiefMaster, Commented May 19, 2012 at 11:02
@ThiefMaster : I used this data: {uname: uname, pass: pass} but still same problem — J.K.A.
– J.K.A., Commented May 19, 2012 at 11:07

NT_ · Accepted Answer · 2012-05-19 11:33:07Z

1

$.ajax({
    type: "GET",
    url: 'test.php',
dataType: 'jsonp',
    contentType: "text/html",
    crossDomain:'true',
    data: {uname: "admin", pass: "admin"},
    success: function (json) {
        //process the json here.
    }
});

You are using incorrect format for data field of ajax .

And no, Javascript doesn't normally allow you to access data via ajax from external servers.It will give out

Origin http://externalhost is not allowed by Access-Control-Allow-Origin.

Edit:

However, You can set crossDomain and dataType:'jsonp' for getting JSON data from an external server.

edited May 19, 2012 at 11:33

answered May 19, 2012 at 11:18

NT_

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5 Comments

J.K.A. Over a year ago

now it showing response in firebugs net window but not alerting it

NT_ Over a year ago

do alert(data); . ie, success: function (json) { alert(json) }

NT_ Over a year ago

@Kunal !! what do you mean by you already did. What's it alerting?. It wont alert anything unless you return JSON data from the PHP .

J.K.A. Over a year ago

means I already tried this code : alert(data); . ie, success: function (json) { alert(json) } but still alert not showing the response is coming into the firebugs net window i.e. yes and no

NT_ Over a year ago

that is because Javascript doesnt allow you to access NON JSON data from external server. Aren't you reading at all?. Respond from the server with JSON.

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