
Do the two recordsets have the same columns?
You could join two recordsets into a single array and then output that as JSON like:
<?php
die(json_encode(array($myQuery->Results,$mySecondQuery->Results), JSON_UNESCAPED_UNICODE|JSON_UNESCAPED_SLASHES));
?>

I am attach the file here, I tried but failed and seems I could not figure it out correctly yet, Pls help me.