EntityRef: expecting ';' error while creating the xml file?

This page contains the following errors:

error on line 68 at column 18: EntityRef: expecting ';'

Below is a rendering of the page up to the first error.

Generally  this error occured when any value have & in the value between tag

example: <Name>PHP & C</Name>

So & break the xml and due to this it shows the error

just replace  & with &amp  in your value field

example: 

$output .= "<Name>" . str_replace('&', '&amp;', $row['name']) . "</Name>";

I hope this will help you.

If helped then dont forget to comment to inspire me :)