MongoDB的\驱动程序\管理器或MongoClient不工作

Question

我想下面这段代码，但不工作 - 无输出显示

<?php
$manager = new MongoDB\Driver\Manager("mongodb://localhost:27017");
var_dump($manager);
?>

也尝试过下面所示的另一种代码，但是这也不产生输出

<?php
   // connect to mongodb
   $m = new MongoClient();

   echo "Connection to database successfully";
   // select a database
   $db = $m->mydb;

   echo "Database mydb selected";
?>

我究竟做错了什么？

$ mongod --version
db version v3.4.4
git version: 888390515874a9debd1b6c5d36559ca86b44babd
OpenSSL version: OpenSSL 1.0.1f 6 Jan 2014
allocator: tcmalloc
modules: none
build environment:
distmod: ubuntu1404
    distarch: x86_64
    target_arch: x86_64

**

$ php --version
PHP 5.6.30-12~ubuntu14.04.1+deb.sury.org+1 (cli) 
Copyright (c) 1997-2016 The PHP Group
Zend Engine v2.6.0, Copyright (c) 1998-2016 Zend Technologies
    with Zend OPcache v7.0.6-dev, Copyright (c) 1999-2016, by Zend Technologies

**

$ php -i | grep extension_dir
extension_dir => /usr/lib/php/20131226 => /usr/lib/php/20131226
$ cd /usr/lib/php/20131226
$ ls
calendar.so  exif.so      gettext.so  mbstring.so  pdo.so    readline.so   sockets.so  sysvshm.so    xmlreader.so  xsl.so
ctype.so     fileinfo.so  iconv.so    mongodb.so   phar.so   shmop.so      sysvmsg.so  tokenizer.so  xml.so
dom.so       ftp.so       json.so     opcache.so   posix.so  simplexml.so  sysvsem.so  wddx.so       xmlwriter.so

**

echo extension_loaded("mongo") ? "loaded\n" : "not loaded\n";

produces output - not loaded

php.ini中

Answer 1

第一个需要有MongoDB的安装和PHP脚本“供应商/ autoload.php”到它的链接。在很多情况下，你需要检查你的主机：

  $DB_CONNECTION_STRING="mongodb://YourCredentials";
  require '../../vendor/autoload.php';
  $manager = new MongoDB\Driver\Manager( $DB_CONNECTION_STRING );

然后，如果你使用的MongoDB \驱动程序\经理，MongoDB的驱动的现代版，你的代码看起来像CRUD操作的测试如下例子：

创建集合在一个文档：

$bulkWrite = new MongoDB\Driver\BulkWrite;
$doc = ['name' => 'John', age => 33, profession => 'Guess what?'];
$bulkWrite->insert($doc);
$manager->executeBulkWrite('db.MyCollection', $bulkWrite);

按名称与极限读取集合中的文件：

$filter = ['name' => 'John'];
$options = ['limit' => 2];
$query = new MongoDB\Driver\Query($filter, $options);
$manager->executeQuery('db.MyCollection', $query);

通过MongoDB的_id与极限读取集合中的文件：

$filter = ['_id' => new MongoDB\BSON\ObjectID( '5bdf54e6d722dc000f0aa6c2' )];
$options = ['limit' => 2];
$query = new MongoDB\Driver\Query($filter, $options);
$manager->executeQuery('db.MyCollection', $query);    

集合中更新文件：（了解更多关于选择UPSERT和多here）

$bulkWrite=new MongoDB\Driver\BulkWrite;
$filter = ['name' => 'John'];
$update = ['$set' => ['name' => 'Smith', age: 35, profession => 'Guess what?']];
$options = ['multi' => false, 'upsert' => false];
$bulkWrite->update($filter, $update, $options);
$manager->executeBulkWrite('db.MyCollection', $bulkWrite);    

集合中删除文件 - 删除：

$bulkWrite=new MongoDB\Driver\BulkWrite;
$filter= ['name' => 'John', age => 35];
$options = ['limit' => 1];
$bulkWrite->delete($filter, $options);
$manager->executeBulkWrite('db.MyCollection', $bulkWrite);