1. ??????? ?? ??? ?????. $dbConfig ??? ??? ?? ?????.

??: ?? ???? ?? ?????? ?? ???? ???? ???.

require 'MysqlPdo.class.php' ;

//?????? ?? ?? ??
$dbConfig=array(
'user'=>'root',
'pwd'=>'root',
'dbname'=>'php'
) ;

2, ?????? ?? ??? ?? ?????

//MysqlPdo ?? ?????
$db=MysqlPdo::getInstance($dbConfig);

3 , ?? ??? ?? ??? ???? ?? ?? print

//?? ??? ??
$error=array();

?? ???? ?? ???? ??? PHP ??? ???? ?? ?????. ?? ??

? header.php ??, ?? ??? ????.

<?php if(!empty($error)):?>
    <div>
        <ul>
            <?php foreach ($error as $v): ?>
                <li>
                    <?php echo $v;?>
                </li>
            <?php endforeach;?>
        </ul>
    </div>
<?php endif;?>

? init.php ??? ?????. ?? ??? ??? ????.

<?php
header("Content-Type:text/html;charset=utf-8");
require 'MysqlPdo.class.php';
//配置數(shù)據(jù)庫連接信息
$dbConfig=array(
    'user'=>'root',
    'pwd'=>'root',
    'dbname'=>'php'
);
//實例化MysqlPdo對象
$db=MysqlPdo::getInstance($dbConfig);
//保存錯誤信息
$error=array();