使用mysqli 之后的 php中文乱码问题要点

先看一段实例代码:

<?phpheader ( "Content-type:text/html;charset=utf-8" );  //统一输出编码为utf-8$con = mysqli_connect ( 'localhost', 'root', '' ); //数据库连接

if (mysqli_select_db ( $con, 'mytest' )) {echo "数据库ok";} else {echo '数据库错误';}

<span style="color:#ff0000;">mysqli_query($con,'set names utf8'); //设置读取数据后的编码</span>$query = "select * from users";$arr = mysqli_query ( $con, $query );print_r ( mysqli_fetch_array ( $arr ) );mysqli_close ( $con );?>

要点备注:

1.数据库创建时必须指定utf-8编码

2.创建项目后在项目上设定默认编码为utf-8

3.mysqli_query($con,'set names utf8'); 注意mysqli_query和mysql_query的参数区别:mysql_query("SET NAMES 'utf8'");的参数只有一个,mysqli的需要两个,否则报错