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.
1
2 <?php
3 function foo() {
4 $numargs = func_num_args();
5 echo "Number of arguments: $numargs<br>\n";
6 if ($numargs >= 2) {
7 echo "Second argument is: " . func_get_arg (1) . "<br>\n";
8 }
9 }
10
11 foo (1, 2, 3);
12 ?>
13 |
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.