舊版本mongo例項化用：new Mongo();

新mongo例項化

<?php

$m = new MongoClient(); // 連線
$db = $m->selectDB("example");

?>

//連線localhost:27017
$conn = new Mongo();

//連線遠端主機預設埠
$conn = new Mongo('test.com');

//連線遠端主機22011埠
$conn = new Mongo('test.com:22011');

//MongoDB有使用者名稱密碼
$conn = new Mongo("mongodb://${username}:${password}@localhost")

//MongoDB有使用者名稱密碼並指定資料庫blog
$conn = new Mongo("mongodb://${username}:${password}@localhost/blog");

//多個伺服器
$conn = new Mongo("mongodb://localhost:27017,localhost:27018");
//選擇資料庫blog
$db = $conn->blog;
//制定結果集（表名：users）
$collection = $db->users;
//新增
$user = array('name' => 'caleng', 'email' => 'admin#admin.com');
$collection->insert($user);
//修改
$newdata = array('$set' => array("email" => "

[email protected]"));
$collection->update(array("name" => "caleng"), $newdata);
//刪除
$collection->remove(array('name'=>'caleng'), array("justOne" => true));
//查詢
$cursor = $collection->find();
var_dump($cursor);
//查詢一條
$user = $collection->findOne(array('name' => 'caleng'), array('email'));
var_dump($user);
//關閉資料庫
$conn->close();