Drop Down list in php (help) - php

Question

Well, this is my first question in stackoverflow. I hope that you can help me!
I would like to make a select box or a drop down list, if you prefer
So, i have this php code:
<?php $i = 0; ?>
<?php $orders = osc_list_orders();
foreach($orders as $label => $params) {
$orderType = ($params['iOrderType'] == 'asc') ? '0' : '1'; ?>
<?php if(osc_search_order() == $params['sOrder'] && osc_search_order_type() == $orderType) { ?>
<a class="current" href="<?php echo osc_update_search_url($params); ?>"><?php echo $label; ?></a>
<?php } else { ?>
<?php echo $label; ?>
<?php } ?>
<?php if ($i != count($orders)-1) { ?>
<span>|</span>
<?php } ?>
<?php $i++; ?>
<?php } ?>
I have tried to do something like this:
function osc_list_orders_drop() {
$orders = osc_list_orders();
echo '<select name="order" id="order" ONCHANGE="location = this.options[this.selectedIndex].value;">';
foreach($orders as $label => $params){
$orderType = ($params['iOrderType'] == 'asc') ? '0' : '1';
echo '<option value="'.osc_update_search_url($params).'">';
echo $label;
echo'</option>';
}
echo'</select>';
}
But the first option is not stored, so when i select one option and then try to select the first one, the first one never works.
Can you help me?
Thx

Answer 1

Try adding a blank option tag in the select, it will allow the change to trigger.
function osc_list_orders_drop() {
$orders = osc_list_orders();
echo '<select name="order" id="order" ONCHANGE="location = this.options[this.selectedIndex].value;">';
echo '<option></option>';
foreach($orders as $label => $params){
$orderType = ($params['iOrderType'] == 'asc') ? '0' : '1';
echo '<option value="'.osc_update_search_url($params).'">';
echo $label;
echo'</option>';
}
echo'</select>';
}
A better option would be to add a selected="selected" to the current filter's option tag.