How to read query strings without knowing variable's names?

Question

I want to read all query strings that send from an URL, But I don't know variable's names to using $_REQUEST['variable1'] . So What I must do?

Answer 1

$_SERVER['QUERY_STRING']包含所需的所有查询字符串。

Answer 2

you could do this var_dump($_REQUEST); It will dump everything onto screen for you

Answer 3

foreach ($_REQUEST as $var_name => $value) {
    //your stuff
}