--TEST-- Test gmstrftime() function : usage variation - Passing week related format strings to format argument. --FILE-- "%a", 'Full weekday name' => "%A", 'Week number of the year' => "%U", 'Week number of the year in decimal number' => "%W", ); // loop through each element of the array for timestamp foreach($inputs as $key =>$value) { echo "\n--$key--\n"; var_dump( gmstrftime($value) ); var_dump( gmstrftime($value, $timestamp) ); }; ?> --EXPECTF-- *** Testing gmstrftime() : usage variation *** --Abbreviated weekday name-- string(%d) "%s" string(3) "Fri" --Full weekday name-- string(%d) "%s" string(6) "Friday" --Week number of the year-- string(%d) "%d" string(2) "31" --Week number of the year in decimal number-- string(%d) "%d" string(2) "31"