func_get_arg -- Return an item from the argument list.


int func_get_arg(int arg_num);

Returns the argument which is at the arg_num'th offset into a user-defined function's argument list. Function arguments are counted starting from zero. func_get_arg() will generate a warning if called from outside of a function definition.

If arg_num is greater than the number of arguments actually passed, a warning will be generated and func_get_arg() will return FALSE.

function foo() {
   $numargs = func_num_args();
   echo "Number of arguments: $numargs<br>\n";
   if ( $numargs >= 2 ) {
      echo "Second argument is: " . func_get_arg( 1 ) . "<br>\n";

foo( 1, 2, 3 );

func_get_arg() may be used in conjunction with func_num_args() and func_get_args() to allow user-defined functions to accept variable-length argument lists.

Note: This function was added in PHP 4.