ExtJS.comIf you have problems when you want to fill ExtJS grid to get data from remote domain may be you will get error that says 'invalid label' because it should be a javascript content not JSON content and the script should call the callback function was declare in the URL.
Based on Ext ScriptTagProxy documentation here the PHP code to fix that error :
First we check callback variable if it set we set content-type for browser to javascript and add callback function to JSON data retrieved.
<php
require_once('../lib/json/json.php');
$json = new Services_JSON();
$scriptTag = false;
$cb = $_GET['callback'];
if (!empty($cb)) {
$scriptTag = true;
header("Content-type: text/javascript");
} else {
header("Content-type: application/x-json");
}
if ($scriptTag) echo $cb . "(";
echo $json->encode(
Array(
'totalCount' => $res->numRows(),
'dt' => getData($_GET['start'])
)
);
if ($scriptTag) echo ");";
?>
Ok. Hope it help you
Agus Sudarmanto
3 comments:
Gracias socio. me salvaste el dia ya estaba loco con este error y no entendia bien la explicacion de la api, muchas gracias.
Thank you very much
$jsonData = json_encode($data);
$jsonData= "({\"success\":true,\"totalCount\": \"".count($data)."\",\"records\":".$jsonData."})";
if (isset($_REQUEST['callback'])) {
header('Content-Type: text/javascript');
echo $_REQUEST['callback']. '(' . $jsonData . ');';
} else {
header('Content-Type: application/x-json');
echo $jsonData;
}
Assuming you are using php:
To avoid cant modify header error, make sure no blank line before <?php
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