Description
int
func_num_args ( void )
Returns the number of arguments passed into the current
user-defined function. func_num_args() will
generate a warning if called from outside of a user-defined function.
This function cannot be used directly as a function parameter. Instead,
its result may be assigned to a variable, which can then be passed to
the function.
Note: Because this function depends on the
current scope to determine parameter details, it cannot be used as a
function parameter. If you must pass this value, assign the results to a
variable, and pass the variable.
func_num_args() may be used in conjunction
with func_get_arg() and
func_get_args() to allow user-defined
functions to accept variable-length argument lists.
