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有一个非常大的 xml 数据提要我在 PHP 中解析，所以我使用 xmlReader，因为 simpleXML 每次都失败 - 只是锁定并停止。即使使用 xmlReader/simpleXML 混合代码，它仍然失败，所以我在 xmlReader 中完成所有操作 - 不幸的是。

所以，我对在哪里打开和关闭与我的循环相关的 xmlReader 感到困惑。我需要最好的内存管理。

****Open reader Here????

Foreach ($modelArray as $model)// there are 10000 models

****OR open reader Here???

    if(!$reader->open($request_url)){
        echo "Error";
        break;
    }
    while ($reader->readToNext('Product'){ // There are 500 Products  per model
       //do my node processing here. Grab nodes and add to mysql DB
    }

    return array('msg' => $msg,'addedProdsPerManu' =>$counter_addedProdsManu);

****Close Reader HERE?

}//close foreach

****OR Close Reader HERE?

对于最有效的内存利用，任何建议将不胜感激，因此该程序将一直运行。

谢谢

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1 回答 1

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下面的评论之间/** */

/**
 * If you can, open it here.
 */

Foreach ($modelArray as $model)// there are 10000 models

    /**
     * If you open the reader here, you are doing 10000 network requests.
     *
     * BUT depends on your needs, if the url must be get from the model, you'll
     * have to connect here.
     */
    if(!$reader->open($request_url)){
        echo "Error";
        break;
    }

    while ($reader->readToNext('Product'){ // There are 500 Products  per model
       //do my node processing here. Grab nodes and add to mysql DB
    }

    /**
     * IF you opened the connection just before the while, THEN close it here.
     */

    /**
     * return HERE!?? 
     * You're just checking the first model then!!
     */        
    return array('msg' => $msg,'addedProdsPerManu' =>$counter_addedProdsManu);

}//close foreach

/**
 * If you could open the connection before the foreach, then close it here.
 */
于 2013-08-17T07:19:13.830 回答