JS grid load data above 5000

[PankajaRajput]

notification.php

<script> $(function() { $('#grid_table').jsGrid({ width: "100%", height: "auto", selecting:true, filtering:true, inserting:false, editing: false, sorting: true, paging: true, autoload: true, pageSize: 15, pageButtonCount: 5, controller: { loadData: function(filter){ return $.ajax({ type: "GET", url: "fetch_data.php", data: filter }); }, }, fields: [ { name: "first_name", type: "text", title: "First Name", }, { name: "last_name", type: "text", title: "Last Name", }, { name: "client_phone", type: "text", title: "Client Phone", }, { name: "txtmessage", type: "text", title: "Message", width:"30%", }, { name: "direction", type: "text", title: "Direction", filtering: true, width:"10%", }, { name: "message_status", type: "text", title: "Status", filtering: true, width:"10%", }, { name: "created_at", type: "text", title: "Sent On", formatter: "date", width:"10%", }, { type: "control", modeSwitchButton: false,editButton:false, deleteButton:false,} ] }); }); </script>

fetch_data.php

$method = $_SERVER['REQUEST_METHOD'];

if($method == 'GET')
{
$data = array(
':first_name' => "%" . $_GET['first_name'] . "%",
':last_name' => "%" . $_GET['last_name'] . "%",
':client_phone' => "%" . $_GET['client_phone'] . "%",
':txtmessage' => "%" . $_GET['txtmessage'] . "%",
':direction' => "%" . $_GET['direction'] . "%",
':message_status' => "%" . $_GET['message_status'] . "%",
':created_at' => "%" . $_GET['created_at'] . "%",
);

$query = "select *,c.first_name,c.last_name,c.txtphone,p.project_name from crm_notifications as n left JOIN crm_clients as c ON c.client_id=n.client_id left JOIN crm_projects as p ON p.project_id=n.project_id WHERE c.first_name LIKE :first_name AND c.last_name LIKE :last_name AND n.client_phone LIKE :client_phone AND n.txtmessage LIKE :txtmessage AND n.direction LIKE :direction AND n.message_status LIKE :message_status AND n.created_at LIKE :created_at ORDER BY created_at DESC";

$statement = $connect->prepare($query);
$statement->execute($data);
$result = $statement->fetchAll();

foreach($result as $row)
{
if($row['message_status']=='Delivered'){
$ststusclass="text-success";
}
elseif($row['message_status']=='Failed' || $row['message_status']=='Invalid'){
$ststusclass="text-danger";
}
elseif ($row['message_status']=='Reply') {
$ststusclass="text-warning";
}
elseif ($row['message_status']=='Received') {
$ststusclass="text-primary";
}
else{
$ststusclass="";
}

$directionclass= ($row['direction']=='Incoming')?'text-warning':'text-success';

$direction= "".$row['direction']."";
$status = "".$row['message_status']."";

$output[] = array(
'first_name' => $row['first_name'],
'last_name' => $row['last_name'],
'client_phone' => $row['client_phone'],
'txtmessage' => $row['txtmessage'],
'direction' => $direction,
'message_status' => $status,
'created_at' => date("Y-m-d",strtotime($row['created_at'])),
);
}
//till here getting 4000 records but not proceeding with json encode

header("Content-Type: application/json");
echo json_encode($output);
}

'll return no data to jsgrid