ucwords Uppercase the first character of each word in a string stringucwords stringstr Returns a string with the first character of each word in str capitalized, if that character is alphabetic. The definition of a word is any string of characters that is immediately after a whitespace (These are: space, form-feed, newline, carriage return, horizontal tab, and vertical tab). ]]> ¬e.bin-safe; See also strtoupper, strtolower and ucfirst.