Use parse_url
.
Quoted from php.net:
This function parses a URL and returns an associative array
containing any of the various components of the URL that are present.
This function is not meant to validate the given URL, it only breaks
it up into the above listed parts. Partial URLs are also accepted,
parse_url() tries its best to parse them correctly.
Then, use parse_str
function to parse the query parameters part.
Parses str as if it were the query string passed via a URL and sets
variables in the current scope.
To get the current QUERY_STRING, you may use the variable $_SERVER['QUERY_STRING']. Also, you may want to read the section on
variables from external sources.
The magic_quotes_gpc setting affects the output of this function, as parse_str() uses the same mechanism that PHP uses to populate the
$_GET, $_POST, etc. variables.
<?php
$parts = parse_url('www.site.com/index.php?foo&bar');
print_r($parts);
// Array ( [path] => www.site.com/index.php [query] => foo&bar )
parse_str ($parts['query'], $query);
print_r($query);
// Array ( [foo] => [bar] => )
// Alternately you can do this in a single shot like below:
parse_str(parse_url('www.site.com/index.php?foo&bar', PHP_URL_QUERY));
?>