我的while無法正常從數據庫中獲取php中的數據

Question

<?php 
    require " require "dbconnect.php";

    $query="SELECT meta_title,published_date,number_of_pages,meta_description,meta_keywords,created_at FROM report";
    $res=MySQL_query($query) or die(MySQL_error());




            while($arr=MySQL_fetch_array($res)){
        $meta_title=$arr['meta_title'];
        $published_date=$arr['published_date'];
        $number_of_pages=$arr['number_of_pages'];
        $meta_description=$arr['meta_description'];
        $meta_keywords=$arr['meta_keywords'];
        $created_at=$arr['created_at'];



    }

    ?>";

    $query="SELECT meta_title,published_date,number_of_pages,meta_description,meta_keywords,created_at FROM report";
    $res=MySQL_query($query) or die(MySQL_error());




            while($arr=MySQL_fetch_array($res)){
        $meta_title=$arr['meta_title'];
        $published_date=$arr['published_date'];
        $number_of_pages=$arr['number_of_pages'];
        $meta_description=$arr['meta_description'];
        $meta_keywords=$arr['meta_keywords'];
        $created_at=$arr['created_at'];

    }

    ?>

Answer 1

您必須先建立數據庫連接，例如

$connection = mysql_connect('host','username','password','database');

然后像這樣將連接傳遞給mysql_query

mysql_query($connection,$query);