abstract:<?php/** * PDO对象 * PDO($dsn,$user,$password) * dsn: mysql:host = localhost/127.0.0.1; dbname = userDB; chrset = utf8 (可忽略,默认utf8) */$type = 'mysql'; //数据类
<?php
/**
* PDO对象
* PDO($dsn,$user,$password)
* dsn: mysql:host = localhost/127.0.0.1; dbname = userDB; chrset = utf8 (可忽略,默认utf8)
*/
$type = 'mysql'; //数据类型
$host = '127.0.0.1'; //数据库主机名
$dbname = 'test'; //数据库名
$charset = 'utf8'; //默认编码
$port = '3306'; //可选;默认值:3306
$dsn = $type.':host='.$host.';dbname='.$dbname.';charset='.$charset;
$user = 'root'; //数据库用户名
$password = 'root'; //数据库密码
try{
//连接
$pdo = new PDO($dsn,$user,$password);
//关闭
$pdo = NULL;
}catch (PDOException $e){
exit($e->getMessage());
}
Correcting teacher:天蓬老师Correction time:2019-01-08 13:15:55
Teacher's summary:$pdo = NULL; 这个操作, 以后要放在应用中, 记得上线时,从连接文件中删除,否则永远连不上