php操作MongoDB基础教程（连接、新增、修改、删除、查询）

具体可参照PHP官方手册。http://php.net/manual/zh/book.mongo.php

旧版本mongo实例化用：new Mongo();

新mongo实例化

<?php

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

?>


//连接localhost:27017

$conn = new Mongo();

//连接远程主机默认端口

$conn = new Mongo('test.com');

//连接远程主机22011端口

$conn = new Mongo('test.com:22011');

//MongoDB有用户名密码

$conn = new Mongo("mongodb://${username}:${password}@localhost")

//MongoDB有用户名密码并指定数据库blog

$conn = new Mongo("mongodb://${username}:${password}@localhost/blog");

//多个服务器

$conn = new Mongo("mongodb://localhost:27017,localhost:27018");

//选择数据库blog

$db = $conn->blog;

//制定结果集（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" => "test@test.com"));

$collection->update(array("name" => "caleng"), $newdata);

//删除

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

//查找

$cursor = $collection->find();

var_dump($cursor);

//查找一条

$user = $collection->findOne(array('name' => 'caleng'), array('email'));

var_dump($user);

//关闭数据库

$conn->close();