.\"determine whether or not a given variable is an integer .DT intp Discworld driver help intp Name .SI 5 intp() - determine whether or not a given variable is an integer .EI Synopsis .SI 5 int intp(mixed arg); .EI Description .SP 5 5 Return 1 if `arg' is an integer number and zero (0) otherwise. .EP See also .SI 5 stringp(3), pointerp(3), objectp(3). .EI