php - Is there a way to get the arguments supplied to a php function?

Question

Is there a way to get the parameters passed to a php function?

fill in the blank if its possible:

function foo(){
    var_dump( SOME_MAGICAL_FUNCTION_THAT_GETS_ALL_PARAMETERS_INTO_AN_ARRAY );
}
foo('a', 'b', 'c', 1, 2, 3);

Answer 1

是的，使用 PHP 的内置函数func_get_args()

这是 PHP 文档中的一个示例：

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";
    }
    $arg_list = func_get_args();
    for ($i = 0; $i < $numargs; $i++) {
        echo "Argument $i is: " . $arg_list[$i] . "<br />\n";
    }
}

foo(1, 2, 3);

Answer 2

func_get_args()正是这样做的。