无法抓取wp最近的帖子主题Sql错误

Question

错误是

  

警告：mysql_query（）：第11行/home/lekalic/public_html/latest_new.php中的用户'lekalic'@'localhost'（使用密码：NO）拒绝访问

     

警告：mysql_query（）：无法在第11行的/home/lekalic/public_html/latest_new.php中建立指向服务器的链接

     

警告：mysql_fetch_array（）要求参数1为资源，布尔值在第12行的/home/lekalic/public_html/latest_new.php中给出

Answer 1

在检索任何数据之前，您需要连接到数据库：

$username = "username";
$password = "password";
$hostname = "localhost"; 

//connection to the database
$dbhandle = mysql_connect($hostname, $username, $password)
 or die("Unable to connect to MySQL");

//select a database to work with
$selected = mysql_select_db("databasename",$dbhandle)
  or die("Could not select examples");

//execute the SQL query and return records
$result = mysql_query("SELECT * FROM 'wp_posts' WHERE post_status='publish' ORDER BY ID DESC LIMIT $number");

while ($row = mysql_fetch_array($result)) {
    //do stuff
}

mysql_close($dbhandle);