在PHP中创建与PDO的连接时出错 [英] Error on creating connection to PDO in PHP

问题描述

今天，我删除并重新安装了Lampp的最新版本，以便移至php 5.30，突然之间，一个非常简单的应用程序无法连接到mysql数据库.我正在使用PDO进行连接，并收到以下错误:

Today, I removed and reinstalled the latest version of lampp in order to move to php 5.30, and suddenly a very simple app is failing to connect to the mysql database. I'm using PDO to connect, and receiving the following error:

Warning: PDO::__construct() [pdo.--construct]: [2002] Invalid argument (trying to connect 
via unix://) in /home/raistlin/www/todoapp/home.php on line 9

Fatal error: Uncaught exception 'PDOException' with message 'SQLSTATE[HY000] [2002]
Invalid argument' in /home/raistlin/www/todoapp/home.php:9 Stack trace: #0
/home/raistlin/www/todoapp/home.php(9): PDO->__construct('mysql:host=loca...', 'USER', 
'PASSWORD') #1 {main} thrown in /home/raistlin/www/todoapp/home.php on line 9

为了调试它，我暂时没有抓住错误.

I am not catching the error at the moment, for the sake of debugging it.

以下代码足以在我的系统上复制该问题:

The following code is enough to replicate the issue on my system:

<?php
$DBACCESS = array(
    "connstring"=>"mysql:host=localhost;dbname=todoapp",
    "host"=>"localhost",
    "user"=>"user",
    "password"=>"password",
    "todoapp"=>"todoapp"
    );

    echo implode('<br \>',$DBACCESS);

    $dbh = new PDO($DBACCESS['connstring'],$DBACCESS['user'],$DBACCESS['password']);

    $dbh = null;
?>

在网上看，我发现另外一两个人有同样的问题，但是他们都没有收到回应，更不用说工作了.有人知道发生了什么吗?我在配置中错过了什么吗?我需要做些什么来解决它?

Looking online, I've found one or two other people with the same issue, but none of them have received a response, much less a working one. Does anyone know what is happening? Is there something I missed in the configuration? What do I need to do to fix it?

推荐答案

通常意味着您需要指定TCP/IP(1)，或告诉MySQL Unix套接字在哪里(2):

Usually means that you need to specify TCP/IP (1), or tell MySQL where your Unix socket is (2):

1. "mysql:host = 127.0.0.1"或"mysql:host = localhost; port = 3306"
2. "mysql:unix_socket =/var/run/mysqld/mysqld.sock"

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