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<?php $params = ["begin_date_departure" => "2014-07-01 00:00", "order_id" => 12312]; $res = http_build_query(["begin_date_departure" => "2014-07-01 00:00"]); var_dump($res);
based on c707g
Output for 5.6.30, hhvm-3.18.5 - 3.22.0, 7.0.30 - 7.3.0alpha1
string(39) "begin_date_departure=2014-07-01+00%3A00"