Returns the number of arguments passed to the function func_get_args function_exists Function handling Functions PHP Manual func_num_args (PHP 4, PHP 5)func_num_args — Returns the number of arguments passed to the function Description int func_num_args ( void ) Gets the number of arguments passed to the function. This function may be used in conjunction with func_get_arg() and func_get_args() to allow user-defined functions to accept variable-length argument lists. Return Values Returns the number of arguments passed into the current user-defined function. ChangeLog Version Description 5.3.0 This function can now be used in parameter lists. Errors/Exceptions Generates a warning if called from outside of a user-defined function. Examples Example #1 func_num_args() example <?phpfunction foo(){ $numargs = func_num_args(); echo "Number of arguments: $numargs\n";}foo(1, 2, 3); // Prints 'Number of arguments: 3'?> Notes Note: Because this function depends on the current scope to determine parameter details, it cannot be used as a function parameter. If this value must be passed, the results should be assigned to a variable, and that variable should be passed. See Also func_get_arg() func_get_args() func_get_args function_exists Function handling Functions PHP Manual
