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                ## PHP安裝MongoDB擴展驅動 window上安裝 MongoDB PHP擴展: <!--more--> Github上已經提供了用于window平臺的預編譯php mongodb驅動二進制包([下載地址](https://s3.amazonaws.com/drivers.mongodb.org/php/index.html)),你可以下載與你php對應的版本,但是你需要注意以下幾點問題: 1.安裝的版本要與安裝的PHP版本一致,例如php_mongo-1.6.8-5.4-vc9.dll運行環境是PHP5.4_ts_x86版本,且系統環境至少為vc9。 2.'Thread safe'(線程安全)是運行在Apache上以模塊的PHP上,如果你以CGI的模式運行PHP,請選擇非線程安全模式(' non-thread safe')。 3.下載完你需要的二進制包后,解壓壓縮包,將'php_mongo.dll'文件添加到你的PHP擴展目錄中(ext)。ext目錄通常在PHP安裝目錄下的ext目錄。 打開php配置文件 php.ini 添加以下配置: ``` extension=php_mongo.dll ``` 重啟服務器。 通過瀏覽器訪問phpinfo,如果安裝成功,就會看到mongo。 ## PHP操作mongodb PHP已經提供了一系列的Mongo操作類: http://php.net/manual/zh/book.mongo.php `MongoClient類` 這個類用于創建和管理連接。 `MongoClient` 基本用法 ``` <?php $m = new MongoClient(); // 連接 $db = $m->foo; // 獲取名稱為 "foo" 的數據庫 ?> ``` ``` Table of Contents MongoClient::close — 關閉連接 MongoClient::connect — 連接到數據庫服務器 MongoClient::__construct — 創建一個新的數據庫連接對象 MongoClient::dropDB — 刪除一個數據庫 [已廢棄] MongoClient::__get — 取得一個數據庫 MongoClient::getConnections — 返回所有已打開連接的信息 MongoClient::getHosts — 更新所有關聯主機的狀態信息 MongoClient::getReadPreference — 獲取此連接的讀取首選項 MongoClient::getWriteConcern — Get the write concern for this connection MongoClient::killCursor — Kills a specific cursor on the server MongoClient::listDBs — 列出所有有效數據庫 MongoClient::selectCollection — 獲取數據庫的文檔集 MongoClient::selectDB — 獲取一個數據庫 MongoClient::setReadPreference — 為該連接設置讀取選項 MongoClient::setWriteConcern — Set the write concern for this connection MongoClient::__toString — 該連接的字符串表達方式 ``` `MongoDB類` 該類的實例用于和數據庫進行交互。例如:要獲取一個數據庫: ``` <?php $m = new MongoClient(); // 連接 $db = $m->selectDB("test"); ?> ``` ``` Table of Contents MongoDB::authenticate — 登錄到數據庫 MongoDB::command — 執行一條 Mongo 指令 MongoDB::__construct — 選擇一個數據庫 MongoDB::createCollection — 創建一個集合 MongoDB::createDBRef — 創建數據庫引用 MongoDB::drop — 丟棄數據庫 MongoDB::dropCollection — Drops a collection [deprecated] MongoDB::execute — 在數據庫服務器上運行JavaScript ... ``` `MongoCollection類` 提供對集合的操作,如增刪查改。 ``` Table of Contents MongoCollection::aggregate — Perform an aggregation using the aggregation framework MongoCollection::aggregateCursor — Execute an aggregation pipeline command and retrieve results through a cursor MongoCollection::batchInsert — Inserts multiple documents into this collection MongoCollection::__construct — 創建一個新的集合 MongoCollection::count — 返回集合中的文檔數量 MongoCollection::createDBRef — 創建一個數據庫引用 MongoCollection::createIndex — Creates an index on the specified field(s) if it does not already exist. MongoCollection::deleteIndex — Deletes an index from this collection MongoCollection::deleteIndexes — 刪除集合的所有索引 MongoCollection::distinct — 獲取集合里指定鍵的不同值的列表。 MongoCollection::drop — 刪除該集合 MongoCollection::ensureIndex — Creates an index on the specified field(s) if it does not already exist. MongoCollection::find — 查詢該集合,并返回結果集的 MongoCursor MongoCollection::findAndModify — Update a document and return it MongoCollection::findOne — Queries this collection, returning a single element MongoCollection::__get — Gets a collection MongoCollection::getDBRef — Fetches the document pointed to by a database reference MongoCollection::getIndexInfo — Returns information about indexes on this collection MongoCollection::getName — 返回這個集合的名稱 MongoCollection::getReadPreference — Get the read preference for this collection MongoCollection::getSlaveOkay — Get slaveOkay setting for this collection MongoCollection::getWriteConcern — Get the write concern for this collection MongoCollection::group — Performs an operation similar to SQL GROUP BY command MongoCollection::insert — 插入文檔到集合中 MongoCollection::parallelCollectionScan — Returns an array of cursors to iterator over a full collection in parallel MongoCollection::remove — 從集合中刪除記錄 MongoCollection::save — 保存一個文檔到集合 MongoCollection::setReadPreference — Set the read preference for this collection MongoCollection::setSlaveOkay — Change slaveOkay setting for this collection MongoCollection::setWriteConcern — Set the write concern for this database MongoCollection::toIndexString — Converts keys specifying an index to its identifying string MongoCollection::__toString — String representation of this collection MongoCollection::update — Update records based on a given criteria MongoCollection::validate — Validates this collection ``` `MongoCursor類` 用來遍歷結果。例如: ``` <?php $cursor = $collection->find(); var_dump(iterator_to_array($cursor)); ?> ``` ## 實戰 ``` <?php $m = new MongoClient(); $db = $m->test; //選擇test數據庫 $c = $db->user; //選擇一個集合 //find function get($c){ $list = $c->find(); if(is_object($list)) foreach($list as $k=>$vo){ $data = array( //'id' => $vo['_id'], 'name' => $vo['name'], 'age' => $vo['age'], 'birthday' => $vo['birthday'] ); if(empty($vo['age'])) unset($data['age']); if(empty($vo['birthday'])) unset($data['birthday']); $res[] = $data; } return $res; } function gets($c){ $list = $c->find(); var_dump(iterator_to_array($list)); } $list = get($c); //var_dump($list); //update $where = array('name'=>'yjc'); $new_arr = array( 'name' => 'yjc', 'age' => 25, 'birthday' => '1992-02-18' ); //echo $res = $c->update($where, $new_arr); //全量更新,必須跟全部字段 //局部更新 $where = array('birthday'=>'1992-02-18'); $new_arr = array('$set' =>array('name' => 'yujc', 'age' => 25)); //注意用法,全部寫在$set修改器數組里 //$res = $c->update($where, $new_arr); //新增 $arr = array( 'name' => 'jiancai2', 'age' => 21, 'birthday' => '1993-02-18' ); //$res = $c->insert($arr); var_dump($res); //刪除 $where = array('name'=>'jiancai2'); $res = $c->remove($where); var_dump($res); //count $user_num = $c->count(); var_dump($user_num); //var_dump(get($c)); gets($c); ```
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