問題描述

我有時(shí)會收到以下錯誤:

I receive sometimes the following error:

SQLSTATE[HY000] [14] 無法打開數(shù)據(jù)庫文件

SQLSTATE[HY000] [14] unable to open database file

我使用

new PDO("sqlite:database/datbase.db","","",array(
    PDO::ATTR_PERSISTENT => true
));

每次我想從數(shù)據(jù)庫讀取數(shù)據(jù)或向數(shù)據(jù)庫寫入數(shù)據(jù)時(shí).打開過程是如下函數(shù):

everytime I want read or write data from or to the database. The open process is the following function:

function opendatabase(){
try{
    return new PDO("sqlite:database/database.db","","",array(
        PDO::ATTR_PERSISTENT => true
    ));
}catch(PDOException $e){
    logerror($e->getMessage(), "opendatabase");
    print "Error in openhrsedb ".$e->getMessage();
}
}

一段時(shí)間后(有時(shí)一個多小時(shí)，有時(shí)幾分鐘后，我收到帖子開頭的錯誤消息.我該如何防止此類錯誤?

After some time (sometime more than an hour, some times after some minutes I get the error message at the beginning of the post. How can I prevent such error?

推薦答案

這是來自 SQLlite 的錯誤:

This is an error from SQLlite :

#define SQLITE_CANTOPEN 14/* 無法打開數(shù)據(jù)庫文件 */

好像你打開了很多連接，建議你打開的連接重用.

It seems like you have opened to many connections, I suggest you to reuse the connection if it is open.

創(chuàng)建屬性:

private $pdo;

并在創(chuàng)建新對象之前檢查它是否為空:

And check if it's null before creating a new object:

function opendatabase(){
    try{
        if($this->pdo==null){
          $this->pdo =new PDO("sqlite:database/database.db","","",array(
                PDO::ATTR_PERSISTENT => true
            ));
        }
        return $this->pdo;
    }catch(PDOException $e){
        logerror($e->getMessage(), "opendatabase");
        print "Error in openhrsedb ".$e->getMessage();
    }
}

這篇關(guān)于如何防止 SQLITE SQLSTATE[HY000] [14]?的文章就介紹到這了，希望我們推薦的答案對大家有所幫助，也希望大家多多支持html5模板網(wǎng)！