Facebook messenger structured messages php not displaying php - php

Question

Hopping some of you can help me with this, since a few days back I'm trying to get a list like a carousel, displayed in my FaceBook bot using the following code:
public function returnCarousel(){
$messagearray = array (
'message' =>
array (
'attachment' =>
array (
'type' => 'list',
'payload' =>
array (
'template_type' => 'list',
'top_element_style' => 'compact',
'elements' =>
array (
0 =>
array (
'title' => 'Classic T-Shirt Collection',
'subtitle' => 'See all our colors',
'image_url' => 'https://peterssendreceiveapp.ngrok.io/img/collection.png',
'buttons' =>
array (
0 =>
array (
'title' => 'View',
'type' => 'web_url',
'url' => 'https://peterssendreceiveapp.ngrok.io/collection',
'messenger_extensions' => true,
'webview_height_ratio' => 'tall',
'fallback_url' => 'https://peterssendreceiveapp.ngrok.io/',
),
),
),
1 =>
array (
'title' => 'Classic White T-Shirt',
'subtitle' => 'See all our colors',
'default_action' =>
array (
'type' => 'web_url',
'url' => 'https://peterssendreceiveapp.ngrok.io/view?item=100',
'messenger_extensions' => false,
'webview_height_ratio' => 'tall',
),
),
2 =>
array (
'title' => 'Classic Blue T-Shirt',
'image_url' => 'https://peterssendreceiveapp.ngrok.io/img/blue-t-shirt.png',
'subtitle' => '100% Cotton, 200% Comfortable',
'default_action' =>
array (
'type' => 'web_url',
'url' => 'https://peterssendreceiveapp.ngrok.io/view?item=101',
'messenger_extensions' => true,
'webview_height_ratio' => 'tall',
'fallback_url' => 'https://peterssendreceiveapp.ngrok.io/',
),
'buttons' =>
array (
0 =>
array (
'title' => 'Shop Now',
'type' => 'web_url',
'url' => 'https://peterssendreceiveapp.ngrok.io/shop?item=101',
'messenger_extensions' => true,
'webview_height_ratio' => 'tall',
'fallback_url' => 'https://peterssendreceiveapp.ngrok.io/',
),
),
),
),
'buttons' =>
array (
0 =>
array (
'title' => 'View More',
'type' => 'postback',
'payload' => 'payload',
),
),
),
),
),
);
$this->sendMessage($messagearray);
}
public function sendMessage($parameters) {
echo json_encode($parameters);
}
No carousel is displayed and no error is returnes intead I get in my ngrok console this:
{"message":{"attachment":{"type":"list","payload":{"template_type":"list","top_element_style":"compact","elements":[{"title":"Classic T-Shirt Collection","subtitle":"See all our colors","image_url":"https://peterssendreceiveapp.ngrok.io/img/collection.png","buttons":[{"title":"View","type":"web_url","url":"https://peterssendreceiveapp.ngrok.io/collection","messenger_extensions":true,"webview_height_ratio":"tall","fallback_url":"https://peterssendreceiveapp.ngrok.io/"}]},{"title":"Classic White T-Shirt","subtitle":"See all our colors","default_action":{"type":"web_url","url":"https://peterssendreceiveapp.ngrok.io/view?item=100","messenger_extensions":false,"webview_height_ratio":"tall"}},{"title":"Classic Blue T-Shirt","image_url":"https://peterssendreceiveapp.ngrok.io/img/blue-t-shirt.png","subtitle":"100% Cotton, 200% Comfortable","default_action":{"type":"web_url","url":"https://peterssendreceiveapp.ngrok.io/view?item=101","messenger_extensions":true,"webview_height_ratio":"tall","fallback_url":"https://peterssendreceiveapp.ngrok.io/"},"buttons":[{"title":"Shop Now","type":"web_url","url":"https://peterssendreceiveapp.ngrok.io/shop?item=101","messenger_extensions":true,"webview_height_ratio":"tall","fallback_url":"https://peterssendreceiveapp.ngrok.io/"}]}],"buttons":[{"title":"View More","type":"postback","payload":"payload"}]}}}}
if I send a single card it works, please your help

Answer 1

SOLVED: I formatted the array like this and I get it working.
$messagearray = array (
'speech' => 'Carousel',
'messages' => array (
0 => array (
'type' => 1,
'platform' => 'facebook',
'title' => 'Rosa Amarilla',
'imageUrl' => 'http://rosa.com/assets/imgs/rosaamarilla.jpg',
'buttons' =>
array (
0 =>array ('text' => 'Detalles de la Rosa', 'postback' => '',),
),
),
1 =>array (
'type' => 1,
'platform' => 'facebook',
'title' => 'Rosa Azul',
'imageUrl' => 'http://rosa.com/assets/imgs/rosaazul.jpg',
'buttons' =>
array (
0 => array ('text' => 'Detalles de la Rosa', 'postback' => '',),
),
),
),);