I'm trying to add a value from a selected in my html into a PHP file using jQuery. I have 2 php file, chainmenu.php and function.php. function.php contain 2 functions to get some data from my database. chainmenu.php is used to show the result of a function from function.php. It requires a variable, that is a value from selected option in my html. I was able to retrieve the value, but my problem is that my $.post function doesn't work. I dont know where is the error, is it in my chainmenu.php or in my function.php.
This is my code
jQuery CODE
<script type="text/javascript">
$(document).ready(function() {
$("select#trafo").attr("disabled","disabled");
$("select#gi").change(function(){
$("select#trafo").attr("disabled","disabled");
$("select#trafo").html("<option>wait...</option>");
var id = $("select#gi option:selected").attr('value');
$("select#trafo").html("<Option>"+id+"</Option>");
$.post("chainmenu.php", {id:id}, function(data){
$("select#trafo").removeAttr("disabled");
$("select#trafo").html(data);
});
});
});
</script>
Function.php
<?php class SelectList
{
//$this->conn is working fine here
public function ShowGI()
{
$sql = "SELECT * FROM gi";
$res = mysqli_query($this->conn,$sql);
if(mysqli_num_rows($res)>=1){
$category = '<option value="0">Pilih GI</option>';
while($row = mysqli_fetch_array($res))
{
$category .= '<option value="' . $row['idgi'] . '">' . $row['namegi'] . '</option>';
}
}
return $category;
}
public function ShowIt()
{
$sql = "SELECT * FROM It WHERE idgi=$_POST[id]";
$res = mysql_query($sql,$this->conn);
$type = '<option value="0">Choose/option>';
while($row = mysql_fetch_array($res))
{
$type .= '<option value="' . $row['idIt'] . '">' . $row['name'] . '</option>';
}
return $type;
}
}
$opt = new SelectList();
?>
chainmenu.php
<?php include "/opsi.class.php";
echo $opt->ShowIt(); ?>
HTML Code
<head>
<!-- the script here -->
</head>
<body>
<select id=gi>
<option value="0"> Select </option>
</select>
<select id=It>
<!-- chainmenu.php result should be here -->
</select>
</body>
This explanation a little bit messy, but i hope anyone could help me and give me some good advice.
Thank you.
