phpReplace or add query parameter to the current url

$url = parse_url($_SERVER['REQUEST_URI']);
parse_str($url['query'], $q);
$params = ['a' => 1, 'b' => 2];
foreach ( $params as $k => $v ) $q[$k] = $v;
$new_url = $url['path'] . '?' . http_build_query($q);ctrl + cgithub

`parse_url` parse specified url to components	`$_SERVER['REQUEST_URI']` current url
`parse_str` parse query string to key/val array	`$params` list of parameters to add/replace in current query string
`$new_url` will contain updated url	`http_build_query` transform key/val array to query string

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