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?????? ??

1, ? conn.inc.php ?? ??:

?????? ?? ??? ??? ?? ?????: 

<?php
define("HOST",'localhost');
define("USER",'root');
define("PWD",'root');
define("DBNAME",'onecms');

2, ? mysqli.php ?? ??: 

<?php
include 'conn.inc.php';
$mysqli=new mysqli(HOST,USER,PWD,DBNAME);
if($mysqli->connect_errno){
    die('數(shù)據(jù)庫鏈接出錯'.$mysqli->connect_error);
}

??? ??????? ???? ????? mysqli.php ??? ???? ???

???? ??
||
<?php echo "mysqli的用法";