// 栏位字串为
$querys = array("name"=>"shian");
// 数值等于多少
$querys = array("number"=>7);
// 数值大于多少
$querys = array("number"=>array('$gt' => 5));
// 数值大于等于多少
$querys = array("number"=>array('$gte' => 2));
// 数值小于多少
$querys = array("number"=>array('$lt' => 5));
// 数值小于等于多少
$querys = array("number"=>array('$lte' => 2));
// 数值介于多少
$querys = array("number"=>array('$gt' => 1,'$lt' => 9));
// 数值不等于某值
$querys = array("number"=>array('$ne' => 9));
// 使用js下查询条件
$js = "function(){
return this.number == 2 && this.name == 'shian';
}";
$querys = array('$where'=>$js);
// 栏位等于哪些值
$querys = array("number"=>array('$in' => array(1,2,9)));
// 栏位不等于哪些值
$querys = array("number"=>array('$nin' => array(1,2,9)));
// 使用正规查询
$querys = array("name" => new MongoRegex("/shi/$i"));
// 或
$querys = array('$or' => array(array('number'=>2),array('number'=>9)));