<?php
$assetSql = "SELECT *,
asset.CreatedAt AS AssetCreatedAt,
asset.UpdatedAt AS AssetUpdatedAt,
assetcategory.CreatedAt AS AssetCategoryCreatedAt,
assetcategory.UpdatedAt AS AssetCategoryUpdatedAt
FROM asset asset
JOIN assetcategory assetcategory ON assetcategory.AssetCategoryID =asset.AssetCategoryID
WHERE asset.IsActive='1' $assetSqlfilter";
$assetRes = mysqli_query($conn, $assetSql);
if ($assetRes->num_rows > 0) {
  $id = 0;
  foreach ($assetRes as $assetrow) {
    $id++;
    $assets = array_merge($assets, array(array($id, $assetrow['AssetID'], $assetrow['AssetName'], $assetrow['IsInServiceCenter'], $assetrow['AssetCategoryTitle'], $assetrow['AssetCreatedAt'], $assetrow['AssetUpdatedAt'])));
  }
}