--TEST-- Test printf() function : basic functionality - string format --FILE-- <?php /* Prototype : int printf ( string $format [, mixed $args [, mixed $... ]] ) * Description: Produces output according to format . * Source code: ext/standard/formatted_print.c */ echo "*** Testing printf() : basic functionality - using string format ***\n"; // Initialise all required variables $format = "format"; $format1 = "%s"; $format2 = "%s %s"; $format3 = "%s %s %s"; $arg1 = "arg1 argument"; $arg2 = "arg2 argument"; $arg3 = "arg3 argument"; echo "\n-- Calling printf() with no arguments --\n"; $result = printf($format); echo "\n"; var_dump($result); echo "\n-- Calling printf() with one arguments --\n"; $result = printf($format1, $arg1); echo "\n"; var_dump($result); echo "\n-- Calling printf() with two arguments --\n"; $result = printf($format2, $arg1, $arg2); echo "\n"; var_dump($result); echo "\n-- Calling printf() with string three arguments --\n"; $result = printf($format3, $arg1, $arg2, $arg3); echo "\n"; var_dump($result); ?> ===DONE=== --EXPECTF-- *** Testing printf() : basic functionality - using string format *** -- Calling printf() with no arguments -- format int(6) -- Calling printf() with one arguments -- arg1 argument int(13) -- Calling printf() with two arguments -- arg1 argument arg2 argument int(27) -- Calling printf() with string three arguments -- arg1 argument arg2 argument arg3 argument int(41) ===DONE===