From my experience browser security does not seem to allow you to make jsonp calls by POSTING your vars. I have only got this to work with using GET parameters in the url
Here's a function in jquery that you can use to make your queries across domains:
PARAMETERS:
var url - is a string of the actual URL you want to post to including parameters
callbackFn is the actual function you want called on callback so no need to define a var, just put the function name in as a parameter - "NOT in a string"
SERVER SIDE:
**VERY IMPORTANT: You have to echo out the $_GET['callback']('value you want returned') on the server side
Example of test.php:
<?php
echo $_GET['callback'].'('.json_encode($myResult).')';
?>
JAVASCRIPT / AJAX:
To run an API call just run:
var url = 'http://www.google.com/test.php';
function myFunc(msg){
alert(msg);
}
function apiCall(url, callbackFn){
$.ajax({
type: "GET",
url: url,
dataType: "jsonp",
success: function(msg){
callbackFn(msg);
},
error: function(msg){
alert('Failed contacting server, please try again');
}
});
}
apiCall(url,myFunc);
By PHPin24 @ 2010-02-12 17:19:21
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