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

//选择数据库blog,如果没有，则创建

$db = $conn->yyd;

//也可以写成：$db = $conn->selectDB('yyd');


//制定结果集（集合：yyd_test）
$collection = $db->yyd_test;

//也可以写成：$collection = $db->selectCollection('yyd_test');
//var_dump($collection);

$post = array('name' => '22', 'sex' => '32');

$flag=($collection->insert($post));
var_dump($flag);

$arr=array();
$cursor = $collection->find($arr);
foreach($cursor as $key => $value){
    echo "<pre>";
    echo $value['_id'];
    echo '<br>name:';
    echo $value['name'];
    echo "<br>sex:";
    echo $value['sex'];
    echo "</pre>";
}

$arr=array("name"=>"22");
$cursor = $collection->find($arr);

$newdata = array('$set' => array("email" => "test@test.com"));
$collection->update(array("name" => "22"), $newdata);
var_dump($collection);

$arr=array("name"=>"22");
$cursor = $collection->find($arr);
foreach($cursor as $key => $value){
    echo "<pre>";

    echo $value['_id'];
    echo '<br>name:';
    echo $value['name'];
    echo "<br>sex:";
    echo $value['sex'];
    echo "<br>email:";
    echo $value['email'];
    echo "</pre>";
}

$arr=array("name"=>"22");

$collection->remove($arr);

var_dump($collection);

//关闭连接

$conn->close();


//删除一个数据库

$conn->dropDB("yyd");


//列出所有可用数据库

$dbs = $conn->listDBs();