Return an array of field names from an array of key/index column specifiers.
This is usually an identity function but if a key/index uses a column prefix specification, this function extracts just the name.
$fields: An array of key/index column specifiers.
An array of field names.
public function fieldNames($fields) {
$return = array();
foreach ($fields as $field) {
if (is_array($field)) {
$return[] = $field[0];
}
else {
$return[] = $field;
}
}
return $return;
}