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php数据库链接

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WBOYOriginal
2016-06-23 13:19:44849browse

//数据库连接

define('DB_HOST','localhost');

define('DB_USER','root');

define('DB_PWD','root');

define('DB_NAME','rsp_hts');


//创建数据库连接

$_conn = @mysql_connect(DB_HOST,DB_USER,DB_PWD) or die('数据里连接失败');


//选择一款数据库

mysql_select_db(DB_NAME) or die('指定的数据库不存在');


//选择字符集

mysql_query('SET NAMES UTF8') or die('字符集错误');


//执行一条sql语句

mysql_query("SELECT tg_username FROM tg_user WHERE tg_username='{$_clean['username']}'") or die('SQL错误');


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