PHP——中文乱码问题

header("content-type:text/html;charset=utf-8");

 

<?php
header("content-type:text/html;charset=utf-8");
$dbhost = 'localhost:3306';  // mysql服务器主机地址
$dbuser = 'root';            // mysql用户名
$dbpass = 'root';          // mysql用户名密码
$conn = mysqli_connect($dbhost, $dbuser, $dbpass);
if(! $conn )
{
    die('Could not connect: ' . mysqli_error());
}
echo '数据库连接成功！success';
mysqli_close($conn);
?>