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6.3.3. MongoDB 6.3.3.1. 安裝
sudo pecl install mongo
vim /srv/php/etc/conf.d/mongo.iniextension=mongo.so
6.3.3.2. GridFS 6.3.3.2.1. 上傳檔案
<?php$connection = new MongoClient( "mongodb://neo:[email protected]" );$db = $connection->test;$grid = $db->getGridFS();$id = $grid->put("/etc/passwd");
6.3.3.2.2. 讀檔案
<?php$connection = new MongoClient( "mongodb://neo:[email protected]" );$db = $connection->test;$grid = $db->getGridFS();$id = $grid->put("/etc/passwd");$oid = new MongoId($id);$file = $grid->get($oid);echo $file->getBytes();
6.3.3.2.3. storeFile
storeFile 與 put 類似
<?php$connection = new MongoClient( "mongodb://neo:[email protected]" );$db = $connection->test;$grid = $db->getGridFS();$storedfile = $grid->storeFile("/etc/passwd", array("date" => new MongoDate()));// Return newly stored file‘s Document IDecho $storedfile;
6.3.3.2.4. 尋找檔案
findOne 與 get 類似,get 只能通過id取出檔案,findOne可以尋找檔案名稱,日期,尺寸,以及md5值。
<?php$connection = new MongoClient( "mongodb://neo:[email protected]" );$db = $connection->test;$grid = $db->getGridFS();$file = $grid->findOne("/etc/passwd");echo $file->getBytes();
指定 collections
<?php$images = $db->mydb->getGridFS(‘images‘);$image = $images->findOne(‘jwage.png‘);header(‘Content-type: image/png;‘);echo $image->getBytes();?>
6.3.3.2.5. 遍曆檔案
findOne一直只返回一條資料,find可以返回結果集,實現遍曆檔案。
<?php$connection = new MongoClient( "mongodb://neo:[email protected]" );$db = $connection->test;$grid = $db->getGridFS();$files = $grid->find();foreach ($files as $file){print_r($file);}
本文節選自《Netkiller PHP 手劄》
http://netkiller.github.io/php/index.html
PHP + MongoDB + GridFS