php数据库连接的例子

/* database config */ 
$db_host  = 'localhost'; 
$db_user  = 'root'; 
$db_pass  = '123'; 
$db_database = 'todo'; 
/* end config */ 
$link = @mysql_connect($db_host,$db_user,$db_pass) or die('unable to establish a db connection'); 
mysql_set_charset('utf8'); 
mysql_select_db($db_database,$link);

数据库连接代码二:

error_reporting(e_all ^ e_notice); 
$db_host = ''; 
$db_user = ''; 
$db_pass = ''; 
$db_name = ''; 
@$mysqli = new mysqli($db_host, $db_user, $db_pass, $db_name); 
if (mysqli_connect_errno()) { 
    die('
could not connect to the database
please try again after a few moments.
'); 
}
$mysqli->set_charset("utf8");

教程地址：

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