[PHP知识库]php将url问号后的查询字符串解析为数组

$url = "http://localhost/hello?a=1&b=2";
$query_str_arr = [];
try{
    $query_str = substr($url, strpos($url, "?") + 1);
    parse_str($query_str, $query_str_arr);
} catch (Exception $e) {
    //
}
var_dump($query_str_arr);//['a' => 1, 'b' => 2]