la classe form tuto A à Z jour 5

voici le code de la classe "form". des erreurs au niveau des input apparaissent (' Trying to get property of non-object '). Je suis débutante en php et j'ai besoin de l'aide . merci .
<?php
class Form
{
public $controller;
public function __construct($controller){
$this->controller=$controller;
// debug($this->controller->request);
}

public function input($name,$label,$options=array()){
if ($label == 'hidden') {
return '<input type="hidden" name="'.$name.'" value="'.$this->controller->request->data->$name.'" >';

}
$html='<div class="clearfix" >
<label for="input'.$name.'">'.$label.'</label>
<div class="input">';

$attr=' ';
foreach ($options as $k => $v) {
if ($k!='type') {

$attr .= " $k=\"$v\"";
}
}
if (!isset($options'type'])) {
$html .='<input type="text" id="input'.$name.'" name="'.$name.'" value="'.$this->controller->request->data->$name.'" '.$attr.'>';
}elseif ($options'type']=='textarea') {

$html .='<textarea id="input'.$name.'" name="'.$name.'"'.$attr.' >'.$this->controller->request->data->$name.'</textarea>';
}elseif ($options'type']=='checkbox') {

$html .='<input type="hidden" name="'.$name.'" value="0" ><input type="checkbox" name="'.$name.'" value="1">';
}
$html .='<div></div>';
return $html;

}
}