php remove/identify this symbol �

Question

EDIT:

Ok I have some data (A ton of data) being pulled from a MySQL DB Table, nothing special about how the data is entered. When parsing the data and re-displaying

Answer 1

That character means there is a codepoint that your browser does not know how to display. Somewhere you're setting a character value to something outside the normal printable character range, and your browser is telling you by displaying the standard 'unknown' character.

The only way to tackle the problem is to find the bug that put the invalid character into your string in the first place.