--TEST-- pack()/unpack(): "A" modifier --FILE-- <?php var_dump( pack("A5", "foo "), pack("A4", "fooo"), pack("A4", "foo"), unpack("A*", "foo\0\rbar\0 \t\r\n"), unpack("A4", "foo\0\rbar\0 \t\r\n") ); ?> --EXPECTF-- string(5) "foo " string(4) "fooo" string(4) "foo " array(1) { [1]=> string(8) "foo%c%cbar" } array(1) { [1]=> string(3) "foo" }