   #PHP Manual Character type functions ctype_punct ctype_upper

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                                  ctype_space

   (PHP 4 >= 4.0.4)
   ctype_space -- Check for whitespace character(s)

Description

   bool ctype_space ( string text)

   Returns TRUE if every character in text creates some sort of white
   space, FALSE otherwise. Besides the blank character this also includes
   tab, vertical tab, line feed, carriage return and form feed
   characters.
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