If there is any time you want to replace carriage returns and new lines in MS Access fields, then use the following update queries.
Replacing Carriage Returns
UPDATE <TABLE> SET <COLUMN> = replace(<COLUMN>,'chr$(13)','\r');
Replacing New Lines
UPDATE <TABLE> SET <COLUMN> = replace(<COLUMN>,'chr$(10)','\n');
In the examples above I have changed the values to PHP and MySQL friendly \r and \n values, but you could also change these to HTML <br> if you wish.