Solution to the problem of Chinese characters being stored or displayed as garbled characters in php_PHP Tutorial

/*
filename:query.php
do:get and show the data
author:www.5dkx.com
*/
include_once("conn.php");
include_once("include.php");
mysql_query("set names 'gbk'")or die("Failed to set character library n");
mysql_select_db($db)or die("Failed to connect to database!n");
$exec = " select * from $table";
//echo $exec;
$result = mysql_query($exec,$conn)or die("Failed to query database n");
echo "";
for($cout=0;$cout{
$city = mysql_result($result,$cout,city);
$name = mysql_result($result,$cout,name);
$phone = mysql_result($result,$cout,phone);
echo "";
echo "city: $city";
echo "name: $name";
echo "phone: $phone";
echo "";
}
echo "";
?>