Another unrelated ucwords/ucfirst bug(?):

<?php
  $string = 'this is a "test" with word "test" in quotes';
  print ucwords($string);
  $string = '"test2" again';
  print ucfirst($string);
?>

produces:

This Is A "test" With Word "test" In Quotes
"test2" Again

I understand that by algorithm, first character of each word *IS* upper-cased (because first character is ").  However, for us humans, " is not considered a part of a word, therefore "t" in above example should be treated as first letter, and test and test2 should be Test and Test2.

I think that any non-alphanumeric character that is in the beginning of a word (meaning follows a whitespace) should not be considered as "first".

So then:

"test1" - 'test2'   would be    "Test1" - 'Test2'
"test3" -'test4'    would be    "Test3" -'Test4'
"test5-test6"       would be    "Test5-test6"

Comments welcome..