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.
?php function foo() { $numargs = func_num_args(); echo "Number of arguments: $numargs\n"; } foo (1, 2, 3); // Prints 'Number of arguments: 3' ? |
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.