How to iterate over array of objects - php

Question

I am calling a PHP function from a JQuery ajax method. Below is how the response looks from ajax call:
My question is: how to iterate over this array in jquery to get the values?
I am getting "Cannot use 'in' operator to search for 'length' in Array" if I iterate using $.each.
Below is the Code:
$("#member_country").change(function() {
var country = $(this).val();
//alert(country);
var ajax_url_mtypes = ins_membership_ajax.ajax_url;
//alert(ajax_url_mtypes);
jQuery.ajax({
url:ajax_url_mtypes,
data:{country:country,
action: "ins_get_membershiptypes_from_country"},
method:'GET',
contentType: "application/json;charset=utf-8",
success:function(response) {
//var resp = $.trim(response);
alert(response);
$.each(response, function( key, value ) {
alert( key );
alert( value );
});
}
});
PHP Code:
public static function getMembershipTypesNonAdmin($country){
$rtn = array();
global $wpdb;
$table = $wpdb->prefix.self::TABLE_NAME;
$query = "SELECT * FROM {$table} where admin_only = 'false' order by member_type";
$results = $wpdb->get_results($query);
if($results){
foreach($results as $row){
$membership_type = INS_Membership_Types::loadById($row->id);
$membership_type->setDues(INS_Membership_Types::getDuesByEconomy($country, $membership_type->getMemberType()));
$rtn[] = $membership_type;
}
}
return $rtn;
}
private $dues;
public function getDues()
{
return $this->dues;
}
public function setDues($dues)
{
return $this->dues = $dues;
}

Answer 1

You can iterate over objects through for in loop. like as below:
for(var prop in object){
console.log(object[prop]);
}
Hope this helps.

Answer 2

Try with json.
Use
json_encode()
in the php code and
dataType: "json"
in the ajax call