On your documentation to enable export ($dg->enable_export('PDF');) you show a live example where the user can pick the format he wants to export the grid in but you don't give the code for that.
(http://phpgrid.com/example/export-datagrid-to-excel-or-html/)

I managed to recreate the code and made my own script:

Export:
<select id="export" onchange="exportfn()">
<option value="">Pick your format</option>
<option value="CSV">Excel</option>
<option value="PDF">PDF</option>
<option value="HTML">Webpage</option>
</select>

<script>
function exportfn() {
var x = document.getElementById("export").value;
window.location.href = './export.php?gn=Clears&export_type=' + x;
}
</script>

But it would be nicer to have it on the footer like you had it on the live example.

Could you add the code for that option on your documentation?