title: Should I care about multi-byte character strings when using preg_match in PHP
body: <p>I can't seem to find a straight answer to this question.</p>
  
  <p>If my pattern does not contain characters outside the ascii range do I need the /u modifier? The documentation seems to suggest not.  If the string being matched is UTF-8 I will still match the characters I want no?</p>
  
  <p>Thanks</p>