ajax +php secondary linkage menu code_PHP tutorial

ajax +php secondary linkage menu code

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php processing code

header("Content-type: text/html;charset=GBK");//Output encoding to avoid Chinese garbled characters
$pid=$_GET['pid'];

$db=mysql_connect("localhost","root","7529639"); //Create a database connection
mysql_query("set names 'GBK'");
mysql_select_db("menuclass");
$sql="select classname from menu where parentid=".$pid."";
$result=mysql_query($sql);

//Loop through options
while($rows=mysql_fetch_array($result)){
echo '';
echo $rows['classname'];
echo "n";
}

?>

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