How to fix:
STEP 1: copy your json code (bellow given)
STEP 2: go to the http://www.jsonlint.com
STEP 3: paste and you will find where you have made the json syntax error
STEP 4: Correct it
Your json code is:
'. str_replace(",",", ",$json_data). '';
$samples = $data[0];
$sampletexts = '';
foreach($samples as $key => $value) {
$sampletexts.='';
}
/* START - Export action */
if ($_GET['export']=="true" && !strstr($_SERVER['REQUEST_URI'],'grid')) {
$currentsample = $samples[$_GET['sample']];
$ordersTXT = key($currentsample);
$orderTXT = key($currentsample[$ordersTXT]);
$xmlString = "";
$filename = createFileName().".xml";
/* START - Export orders from last export */
if ($_GET['type']=="fromlast") {
$killer=false;
$lastexported = getLastId();
$currentorder=$lastexported+1;
$o=0;
while ($killer==false) {
$orderMag = Mage::getModel('sales/order')->load($currentorder);
if($orderMag->getId()=="") {$killer=true;} else {
$o++;
$xmlString.= "<$orderTXT>".array2xml($currentsample[$ordersTXT][$orderTXT])."";
$currentorder++;
}
}
$currentorder--;
$lastexported++;
if ($o==0) {
$msg = "
No new order(s) since last export
";
}else {
$msg = "
Exported orders: from ".$lastexported." to ". $currentorder. " with ".$_GET['sample']." sample
";
saveExportsFile($_GET['sample'],"Exported orders: from ".$lastexported." to ". $currentorder,$filename,$currentorder);
}
}
/* END - Export orders from last export */
/* START - Export selected orders */
if ($_GET['type']=="custom") {
if ($_GET['orderlist']!="") {
$orderlist = split("_",$_GET['orderlist']);
$o=0;
foreach ($orderlist as $currentorder) {
$o++;
$orderMag = Mage::getModel('sales/order')->load($currentorder);
$xmlString.= "<$orderTXT>".array2xml($currentsample[$ordersTXT][$orderTXT])."";
}
foreach ($orderMag->getAllItems() as $item) {
}
//print_r($item);
$msg = "
Exported orders: ". str_replace("_", ", ",$_GET['orderlist']). " with ".$_GET['sample']." sample