Also, I just noticed that the documentation for the PHP file appears to be incorrect as well. It shows these elements in the generated XML:
records: the total records from the query
total: the total pages in the query
In the sample code on the same page, they show:
$s .= “” . $count . “”;
$s .= “” . $total_pages . “”;
But in this forum post, I was instructed to swap these values like so:
$s .= “” . $totalpages . “n”;
$s .= “” . count ($rows) . “n”;
This worked, in that it caused jqGrid to start loading as needed, but the grid still stops at 400