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<?php $url = 'https://whatever.com/api/campaigns/%s/success'; $query = http_build_query(array( 'campaignId' => 2, 'dateFrom' => date('Y-m-d\TH:i:s', time()), 'dateTo' => date('Y-m-d\TH:i:s', '2015-03-30T09:30:00'), )); echo sprintf($url, 2) . '?' . $query;

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