header('Content-Type:text/html; charset=utf-8');

 $nowyear=date("Y");

 $nowmouth = date('m');

 $nowday = date('d');

 $date = mt_rand("2012",$nowyear)."-".mt_rand("1",$nowmouth)."-".mt_rand("1",$nowday);

 $content=file_get_contents('http://open.iciba.com/dsapi/?date='.$date);

 $arr=json_decode($content,true);

 echo "<pre>";

 print_r($arr);