title: What characters are allowed in a file?
body: <p>I am using a PHP script to write compressed data to a txt file. The data could include any of the 255 ASCII characters. On <a href="http://asciitable.com" rel="nofollow">asciitable.com</a>, there is a character for file seperator (28). I want to know if it will cause trouble if a file seperator, or any special character, is written to a file.</p>
  
  <p>EDIT: Tested on Wampserver on windows, and adding a file separator to a file works fine.</p>