How to pass an array via $_GET in php?

Question

How can I pass one or more variables of type array to another page via $_GET?

I always passed variable values in the form ?a=1&b=2&c=3

W

Answer 1

You can pass an associative array to http_build_query() and append the resulting string as the query string to the URL. The array will automatically be parsed by PHP so $_GET on the receiving page will contain an array.

Example

$query_str = http_build_query(array(
    'a' => array(1, 2, 3)
));