今天外面刮著呼呼的大風，能在一個溫暖的小屋寫著博客也是北漂的一種幸福。好了廢話不多說，今天主要說一下php連接、操作mongodb，如果你沒有看上兩期的內容，不知道如何安裝php對mongodb的擴展的話請您返回去看《php對mongodb的擴展(初識如故) 》和《php對mongodb的擴展(初出茅廬)》。

php 連接mongodb

復制代碼代碼如下:

 
try { 
　　$mongo = new Mongo("mongodb://username:password@127.0.0.1:27017/db1"); 
}catch(MongoConnectionException $e) { 
print $e->getMessage(); 
exit; 
} 

選擇數(shù)據(jù)庫blog

復制代碼代碼如下:

$db = $mongo->blog;

關閉數(shù)據(jù)庫

復制代碼代碼如下:

$conn->close();

選擇操作集合
$collection = $db->users;
插入數(shù)據(jù)

復制代碼代碼如下:

 
$user = array('name' => 'caleng', 'city' => 'beijing'); 
$collection->insert($user); 

修改數(shù)據(jù)

復制代碼代碼如下:

 
$newdata = array('$set' => array("city" => "shanghai")); 
$collection->update(array("name" => "caleng"), $newdata); 

刪除數(shù)據(jù)

復制代碼代碼如下:

$collection->remove(array('name'=>'caleng'), array("justOne" => true));

查找數(shù)據(jù)
查找一條數(shù)據(jù)

復制代碼代碼如下:

$result= $collection->findone(array("name"=>"caleng"));

查詢一個列表

復制代碼代碼如下:

 
//找出創(chuàng)建時間大于某一時間的數(shù)據(jù) 
$start = 1; 
$counditionarray=array("ctime"=>array('$gt'=>1337184000)); 
$list_data = $this->game_handle->find($counditionarray); 
$total = $this->game_handle->count($counditionarray); 
$list_data->limit($count); //數(shù)據(jù)結束位置 
$list_data->skip($start); //數(shù)據(jù)開始取的位置 
var_dump($list_data); 

in查詢

復制代碼代碼如下:

 
$cursor = $collection->find(array( 
'name' => array('$in' => array('Joe', 'Wendy')) 
)); 

group查詢

復制代碼代碼如下:

 
$collection->insert(array("category" => "fruit", "name" => "apple")); 
$collection->insert(array("category" => "fruit", "name" => "peach")); 
$collection->insert(array("category" => "fruit", "name" => "banana")); 
$collection->insert(array("category" => "veggie", "name" => "corn")); 
$collection->insert(array("category" => "veggie", "name" => "broccoli")); 
$keys = array("category" => 1); 
$initial = array("items" => array()); 
$reduce = "function (obj, prev) { prev.items.push(obj.name); }"; 
$g = $collection->group($keys, $initial, $reduce); 
echo json_encode($g['retval']); 

輸出結果：

復制代碼代碼如下:

 
[{"category":"fruit","items":["apple","peach","banana"]},{"category":"veggie","items":["corn","broccoli"]}] 

可以看出得到的結果是一個二維數(shù)組

復制代碼代碼如下:

 
array( 
0 => array("category" =>"fruit", "items"=>array("apple","peach","banana")), 
1 => array("category" =>"veggie", "items"=>array("corn","broccoli")) 
) 

在這里這寫了一些簡單的操作，如果您想用php更好的作用mongodb 那就看手冊吧。

您可能感興趣的文章: