yii2 在yii里面使用php 的mongo函数

yii2中对mongodb的使用是继承的，如果想使用php的mongodb函数，那么：

$mongo = Yii::$app->mongodb;
$mongo->open();
$dsn = $mongo->dsn;
$dsnrev = strrev($dsn);
$databasename = strrev(substr($dsnrev,0,strpos($dsnrev,"/")));
$mongoClient = $mongo->mongoClient;
$collection = $mongoClient->$databasename->customer;

$cursor = $collection->find();
// 迭代显示文档标题
foreach ($cursor as $row) {
echo "name:".$row['name']."<br/>";
echo "_id:".$row['_id']."<br/>";
echo "status:".$row['status']."<br/>";
}

exit;

当然，可以在yii\mongodb\Connection.php中加入函数：

public function mClient(){

$mongo = Yii::$app->mongodb;
$mongo->open();
$dsn = $mongo->dsn;
$dsnrev = strrev($dsn);
$databasename = strrev(substr($dsnrev,0,strpos($dsnrev,"/")));
$mongoClient = $mongo->mongoClient;
$collection = $mongoClient->$databasename;

return $collection;

}

然后就可以这样调用了：$mongoClient = Yii::$app->mongodb->mClient();
$collection = $mongoClient->customer;

$cursor = $collection->find();
// 迭代显示文档标题
foreach ($cursor as $row) {
echo "name:".$row['name']."<br/>";
echo "_id:".$row['_id']."<br/>";
echo "status:".$row['status']."<br/>";
}