PDO insert trying to bind wrong number of params - php

Question

I am having trouble figuring out where my insert (using pdo) is failing. I passed it 19 parameters via an array, and then bound 19 values from that same array.
It fails at the bind step with the following error:
Fatal error: Uncaught exception 'PDOException' with message 'SQLSTATE[HY093]: Invalid parameter number: number of bound variables does not match number of tokens'
I was wondering if you guys would be able to figure out why its failing. The code I am using is below:
addevent.php
if(isset($_POST['add_event'])){
$eventDetails = $_POST;
$event_code = htmlspecialchars($eventDetails['ecode']);
$event_title = htmlspecialchars($eventDetails['etitle']);
$location = htmlspecialchars($eventDetails['location']);
$start_date = htmlspecialchars($eventDetails['start_date']);
$end_date = htmlspecialchars($eventDetails['end_date']);
$super_early_date = htmlspecialchars($eventDetails['super_early_date']);
$early_date = htmlspecialchars($eventDetails['early_date']);
$tax_type = htmlspecialchars($eventDetails['tax_desc']);
$tax_rate = htmlspecialchars($eventDetails['tax_rate']);
$is_call_open = htmlspecialchars($eventDetails['is_call_open']);
$domain_name = htmlspecialchars($eventDetails['domain']);
$sold_out_msg = htmlspecialchars($eventDetails['sold_out_msg']);
$group_min = htmlspecialchars($eventDetails['group_discount_min']);
$group_num = htmlspecialchars($eventDetails['group_discount_per']);
//errors array that will be passed to view if there are errors;
$errors = array();
//if there are contents in the error array from previous execution empty error
if(!empty($errors)){ unset($errors); }
//if any of these fields are empty add them to the array
if(empty($event_code)) { array_push($errors, ucwords('event code is required')); }
if(empty($event_title)) { array_push($errors, ucwords('event title is required')); }
if(empty($location)) { array_push($errors, ucwords('location is required')); }
if(empty($start_date)) { array_push($errors, ucwords('start date is required')); }
if(preg_match('/^[0-9]{4}-(0[1-9]|1[0-2])-(0[1-9]|[1-2][0-9]|3[0-1])$/',$start_date) == 0) { array_push($errors, ucwords('incorrect format for start date, it should be').' yyyy-mm-dd'); }
if(empty($end_date)) { array_push($errors, ucwords('end date is required')); }
if(preg_match('/^[0-9]{4}-(0[1-9]|1[0-2])-(0[1-9]|[1-2][0-9]|3[0-1])$/', $end_date) == 0) { array_push($errors, ucwords('incorrect format for end date, it should be').' yyyy-mm-dd'); }
if(preg_match('/^[0-9]{4}-(0[1-9]|1[0-2])-(0[1-9]|[1-2][0-9]|3[0-1])$/', $super_early_date) == 0) { array_push($errors, ucwords('incorrect format for super early bird date, it should be').' yyyy-mm-dd'); }
if(preg_match('/^[0-9]{4}-(0[1-9]|1[0-2])-(0[1-9]|[1-2][0-9]|3[0-1])$/', $early_date) == 0) { array_push($errors, ucwords('incorrect format for early bird date, it should be').' yyyy-mm-dd'); }
if($tax_type == 'none') { array_push($errors, ucwords('tax type is required')); }
if(empty($tax_rate)) { array_push($errors, ucwords('tax rate is required')); }
if(empty($domain_name)) { array_push($errors, ucwords('domain name is required')); }
if(preg_match('/^(https?:\/\/)?([\da-z\.-]+)\.([a-z\.]{2,6})([\/\w \.-]*)*\/?$/', $domain_name) == 0) { array_push($errors, ucwords('domain name is not valid')); }
if(empty($sold_out_msg)) { array_push($errors, ucwords('sold out message is required')); }
if(!empty($group_min) && empty($group_num)) { array_push($errors, ucwords('group discount (percent) is required')); }
if(!empty($errors)){
$this->set('errors', $errors);
}
else{
//remove the add_event button from the event
$add_event_index = array_pop($eventDetails);
$keys = array_keys($eventDetails);
$addEvent = "INSERT INTO v_events (" . implode(",", $keys) . ") VALUES (";
for($i = 0; $i < sizeof($eventDetails); $i+=1){
if($i == 0) { $addEvent .= "?"; }
else { $addEvent .= ",?"; }
}
$addEvent .= ")";
$success = $this->Cms->query($addEvent, $eventDetails);
if(!$success){
print_r($this->Cms->getError());
}
$this->set('success', ucwords('event succcesfully added!'));
}
}
$this->Cms->query function:
public function query($query, $attributes = array(), $singleResult = 0) {
echo $query;
$stmt = $this->dbc->prepare($query);
if(!empty($attributes)){
echo'<pre>';
print_r($attributes);
echo'</pre>';
foreach($attributes as $values){
if(empty($values) || $values) { $values = 'not provided'; }
if($values == NULL) { $values = '0'; }
echo $stmt->bindParam('?', $values);
echo'<pre>';
$stmt->debugDumpParams();
echo'</pre>';
}
}
$success = $stmt->execute();
return $success;
}