php mongodb怎么定义变量

Question

如题所述

Answer 1

*这样显示正常*/
$findarr=array('age' => array("\$gt"=>20,"\$lte"=>30));
$cursor = $db->find($findarr);
/*这样就null*/
$limitno= 20
$findarr=array('age' => array("\$gt"=>20,"\$lte"=>30));;

foreach ($cursor as $document) {
// echo $document["name"];
// echo $document["age"]."<hr>";
$json['type'.$i] = array(
'age'=>$document["age"],
// 'typeid'=>$document["_id"],
'name'=>$document["name"],
);

$i++;
}
echo json_encode($json);