动态bindVars的用法

private function bindVars($stmt,$params) { if ($params != null) { $types = ''; //initial sting with types foreach($params as $param) { //for each element, determine type and add if(is_int($param)) {$types .= 'i'; //integer } elseif (is_float($param)) {$types .= 'd'; //double } elseif (is_string($param)) {$types .= 's'; //string } else {$types .= 'b'; //blob and unknown } } $bind_names[] = $types; //first param needed is the type string // eg: 'issss' for ($i=0; $i