Text [ With comma, apostrophe,question mark,slash,quotes] from word document

[eluser]suba[/eluser]
Dear all,

I copy text [ With comma, apostrophe,question mark,slash,quotes] from word document and paste into my web page feedback form. After I submit the special characters[comma, apostrophe,question mark,slash] displays some funny funny characters. How can I rectify this issue.

But When I type manually into my form, It shows correct characters.

I used

Code:

$str=htmlentities($string,ENT_QUOTES);

pls advise me