php随机获取金山词霸每日一句

[PHP]代码 

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);
print_r($arr);