Yii findAll（）導致內存問題

Question

我沒有記錄只是15000.而內存php配置爲使用128 MB。所以我得到這個錯誤。的134217728個字節

允許的內存容量耗盡

有2種方式來處理這個問題。

1. DAO http://www.yiiframework.com/doc/guide/1.1/en/database.dao
2. 增加內存允許PHP

我很困惑的是，如果我增加允許到256內存，有一天，當數據的數量爲30 000本錯誤將再次出現。

所以我應該不使用Yii cactiverecord findAll（）當我開發大型應用程序時？或者隨着更多數據的進入，我應該不斷增加內存大小。

什麼是最佳方法？

Answer 1

嘗試使用批處理retrive數據：

http://www.yiiframework.com/doc-2.0/guide-db-active-record.html#data-in-batches

// fetch 10 customers at a time 
foreach (Customer::find()->batch(10) as $customers) { 
    // $customers is an array of 10 or fewer Customer objects 
} 

// fetch 10 customers at a time and iterate them one by one 
foreach (Customer::find()->each(10) as $customer) { 
    // $customer is a Customer object 
} 

// batch query with eager loading 
foreach (Customer::find()->with('orders')->each() as $customer) { 
    // $customer is a Customer object with the 'orders' relation populated 
}