解决php写入数据库乱码的问题

CREATE DATABASE `dbname` DEFAULT CHARACTER SET utf8 COLLATE utf8_general_ci;

CREATE TABLE `test` (

`id` INT NOT NULL ,

`name` VARCHAR( 10 ) CHARACTER SET utf8 COLLATE utf8_general_ci NOT NULL ,

PRIMARY KEY ( `id` )

) ENGINE = MYISAM ;

$connection = mysqli_connect($host_name, $host_user, $host_pass);

mysqli_query("set character set 'utf8'");//读库

mysqli_query("set names 'utf8'");//写库

$conn = mysqli_connect("$host","$user","$password");

mysqli_query("SET NAMES 'UTF8'");

mysqli_select_db("$database",$conn);

<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />

mysqli_query("SET NAMES 'GBK'");

<meta http-equiv="Content-Type" content="text/html; charset=gb2312" />