如何 'SELECT' 来自 orient db 的数据并使用 php 显示它

Question

我正在尝试 select 从 orient db 数据库中插入数据并将其回显出来？我如何使用 php 来做到这一点？

这是我目前所做的

require('OrientDB/OrientDB.php');
$db = new OrientDB('localhost', 2424);





        $connected = $db->connect('root', 'hello');
        $config = $db->DBOpen('tabe', 'root', 'hello');
        if($connected)
        {

              $records = $db->query("select from Nation");

              echo $records;


        }
        else
        {
           die('Server Error');
        }

它只是在屏幕上打印 'Array'

我是运行 windows 机器上的 Apache php 服务器。如何从数据库中获取数据并在网站上打印。

当我使用 for each 循环打印出元素时

我的脚本刚刚超时

 $records = $db->query("select from Nation");
              foreach ($records as $v)
                  echo $v;

如果我使用 print_r($records);

它给出以下输出

Array ( [0] => OrientDBRecord Object ( [isParsed:OrientDBRecord:private] => [className:OrientDBRecord:private] => [type] => d [clusterID:OrientDBRecord:private] => 169 [recordPos:OrientDBRecord:private] => 0 [recordID:OrientDBRecord:private] => 169:0 [version] => 4 [content:OrientDBRecord:private] => Nation@in_partOf:%AQAAAAIAwQAAAAAAAAAAAMIAAAAAAAAAAA==;,Country_Name:"India",Iso_code:"IN" [data] => OrientDBData Object ( [data:OrientDBData:private] => Array ( ) [record:OrientDBData:private] => OrientDBRecord Object *RECURSION* ) ) [1] => OrientDBRecord Object ( [isParsed:OrientDBRecord:private] => [className:OrientDBRecord:private] => [type] => d [clusterID:OrientDBRecord:private] => 170 [recordPos:OrientDBRecord:private] => 0 [recordID:OrientDBRecord:private] => 170:0 [version] => 4 [content:OrientDBRecord:private] => Nation@Country_Name:"United States of America",Iso_code:"US" [data] => OrientDBData Object ( [data:OrientDBData:private] => Array ( ) [record:OrientDBData:private] => OrientDBRecord Object *RECURSION* ) ) [2] => OrientDBRecord Object ( [isParsed:OrientDBRecord:private] => [className:OrientDBRecord:private] => [type] => d [clusterID:OrientDBRecord:private] => 171 [recordPos:OrientDBRecord:private] => 0 [recordID:OrientDBRecord:private] => 171:0 [version] => 2 [content:OrientDBRecord:private] => Nation@Country_Name:"Canada",Iso_code:"CA" [data] => OrientDBData Object ( [data:OrientDBData:private] => Array ( ) [record:OrientDBData:private] => OrientDBRecord Object *RECURSION* ) ) )

如何将其转换为 suitable 形式。就像只取名字

这是我的table

Answer 1

打印结果。而不是 echo

print_r($records);

为了迭代结果，使用 foreach 或 for

首先检查我们是否有一些结果，使用 foreach 作为 :

if(count($records) > 0){//check if we have a result
   foreach($records as $value){//loop
     print_r($value);
  }
}

Answer 2

最好使用PhpOrient库它是orient db

官方支持的库

    $client = new PhpOrient();
        $client->hostname = 'localhost';
        $client->port     = 2424;
        $client->username = 'your_username';
        $client->password = 'your_password';

        $client->connect();
        $client->dbOpen('Your_db_name');

         $query = "SELECT FROM NATION";
         $result = $client->query($query);


       $result =  json_encode($result);
       $result = json_decode($result);

foreach ($result as $row){
       echo $row->oData->Country_Name;
       echo $row->oData->Iso_code;
}

phporient : https://github.com/orientechnologies/PhpOrient.git

如何 'SELECT' 来自 orient db 的数据并使用 php 显示它

How to 'SELECT' data from orient db and display it using php

php

database

orientdb