php 操作 mongodb

asd

<?php
    //connect to mongodb,default:127.0.0.1
    $dbHost="127.0.0.1";
    $dbPort="27017";
    //if there are not any params inside,the mongo link for default port:27017 and default
    //host:localhost

    $conn = new Mongo("$dbHost,$dbPort");


    //select db
    //$db = $conn->blog;//这样写也是对的
    $db = $conn->selectDB("blog");


    //select collection
    //$collection = $db->users;
    $collection = $db->selectCollection("users");

    //insert,在users集合中有三个字段：name,password,email
    $name="test";
    $password=md5("123");
    $email="test@qq.com";

     $newDoc = array(
      "name" => $name,
      "password" => $password,
      "email" => $email
    );
    $ret = $collection->insert($newDoc);





    //delete
    //删除 name："test"的用户，justOne为true删除第一条，false删除所有name为"test"的用户
    $collection->remove(array('name'=>'test'), array("justOne" => false));





    //update
    //将集合中name为"zjw"的更新为"zjw1"
    $newdata = array('$set' => array("name" => "zjw1"));
    $collection->update(array("name" => "zjw"), $newdata,array("multiple"=>true));




    //find   查询所有的
    $cursor = $collection->find();
    // iterate cursor to display datas of documents
    foreach ($cursor as $document) {
        echo $document["name"] . "\t".$document["password"]."\t".$document["email"]."<br/>";
    }

    //find on condition
    //条件查询
    $query = array("name"=>"zjw1");
        $cursor = $collection->find($query); //在$collectio集合中查找满足$query的文档
        while($cursor->hasNext())
        {
          var_dump($cursor->getNext()); //返回了数组
        }
    echo "<br/>";

    //findOne 查询一条数据
    $zjw1_Cursor = $collection->findOne(array("name"=>"zjw1"));

    echo $zjw1_Cursor["name"]."\t".$zjw1_Cursor["password"]."\t".$zjw1_Cursor["email"]."<br/>";


    //list db,列出所有数据库
    $dbs = $conn->listDBs();
    $dbsInfo= $dbs["databases"];
    foreach ($dbsInfo as $info) {
        echo $info["name"]."<br/>";
    }



    //close mongodb
    $conn->close();
?>