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php操作mongodb的常用函数讲解

developer 2021年02月13日 编程语言 138 0

连接mongodb:

$mongoObj = new Mongo("127.0.0.1" , array( 
                        'connect'=>true, 
                        'persist'=>true 
                    ));

选择库:

$mongoDB = $mongoObj->selectDB("wxdata");

选择集合:

$mongoColletion=$mongoDB->selectCollection("apachelog");

删除一个集合:

$mongoColletion->drop();

插入文档数据:

$mongoColletion->insert(array("firstname" => "Bob", "lastname" => "Jones" ));

修改更新文档数据:

$newdata = array('$set' => array("address" => "1 Smith Lane")); 
$mongoColletion->update(array("firstname" => "Bob"), $newdata); 
 
$mongoColletion->update( 
        array("uri" => "/summer_pics"), 
        array('$inc' => array("page hits" => 1)), 
        array("upsert" => true) 
    ); 
 
$mongoColletion->update( 
        array("name" => "joe"), 
        array("username" => "joe312", "createdAt" => new MongoDate()), 
        array("upsert" => true) 
    ); 
 
$today = array('$gt' => new MongoDate(), '$lt' => new MongoDate(strtotime("+1 day"))); 
$mongoColletion->update( 
        array("birthday" => $today), 
        array('$set' => array('gift' => $surprise)), 
        array("multiple" => true) 
    );

新增文档数据:

$obj = array('x' => 1); 
$mongoColletion->save($obj); 
 
$obj['foo'] = 'bar'; 
// $obj 不能被再次插入,导致 duplicate _id 错误 
//$mongoColletion->insert($obj); 
$mongoColletion->save($obj);

移除一个文档数据:

$mongoColletion->remove(array('httpstatus' => 200), array("justOne" => true));

统计文档数量:

$mongoColletion->count(array('httpstatus'=>304));

查询一个文档:

$mongoColletion->findOne(array("httpstatus" => 200));

查看文档索引信息:

$mongoColletion->getIndexInfo();

构建文档索引:

// create an index on 'httpstatus' ascending 
$mongoColletion->ensureIndex(array('httpstatus' => 1)); 
// create a unique index on 'size' 
$mongoColletion->ensureIndex(array('size' => 1), array('unique' => true)); 
// create a compound index on 'size' ascending and 'status' descending 
$mongoColletion->ensureIndex(array('size' => 1, 'status' => -1)); 
 
//全文索引 
$mongoColletion->ensureIndex( 
        array( 
            'title' => 'text', 
            'desc' => 'text', 
        ), 
        array( 
            'name' => 'ExampleTextIndex', 
            'weights' => array( 
                'title' => 100, 
                'desc' => 30, 
            ) 
        ) 
    );

关闭到mongodb的连接:

$mongoObj->close();

 从php操作mongodb常用的函数就这么多了。

 

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