--TEST-- Test vprintf() function : usage variations - string formats with strings --FILE-- --EXPECTF-- *** Testing vprintf() : string formats with strings *** -- Iteration 1 -- int(1) -- Iteration 2 -- hello%0world hello%0 int(18) -- Iteration 3 -- @#$%&* UF  int(16) -- Iteration 4 -- sund mond tuesday wedn int(34) -- Iteration 5 -- This is string defined using heredoc. abcdef 123456 3993 4849 string __ int(71) -- Iteration 6 -- % %s int(4) -- Iteration 7 -- one two three four int(18)