Message formatting, send buttons via Slack API with PHP - php

Question

I'm using webhooks to send messages via Slack API
I need to send a button with a link to a report
I did it with Python successfully
But with PHP i'm having trouble with the arrays of actions in the attachments
code 1
$data = array(
"text" => $message
);
$actions =
[
'type' => "button",
'text' => "Report1",
'url' => "https://url.report1"
];
$data += [
"attachments" =>
[
"fallback" => "More details...", //I only get the message and this text in the slack
'actions' => [$actions] // or array($actions)
]
];
$payload = json_encode($data);
print_r($data) output:
Array
(
[text] => teste
[attachments] => Array
(
[fallback] => More details...
[actions] => Array
(
[0] => Array
(
[type] => button
[text] => Report1
[url] => https://url.report1
)
)
)
)
The paylod is shown, but the button doesn't
code 2
$data = array(
"text" => $message
);
$actions =
[
'type' => "button",
'text' => "Report1",
'url' => "https://url.report1"
];
$data += [
"attachments" =>
[
"fallback" => "More details...",
'actions' => $actions
]
];
$payload = json_encode($data);
print_r($data) output:
Array
(
[text] => teste
[attachments] => Array
(
[fallback] => More details...
[actions] => Array
(
[type] => button
[text] => Report1
[url] => https://url.report1
)
)
)
Neither payload or button are showed
Here's the documentation example, it's very easy to send this with python
{
"text": "<#W1A2BC3DD> approved your travel request. Book any airline you like by continuing below.",
"attachments": [
{
"fallback": "Book your flights at https://flights.example.com/book/r123456",
"actions": [
{
"type": "button",
"text": "Book flights 🛫",
"url": "https://flights.example.com/book/r123456"
}
]
}
]
}
How I can create this kind of structure in PHP?

Answer 1

Here is your "code 1" with the correction. Your attachments property needs to be an array of attachment arrays. You only had a simple array.
$message = "Hello Stackoverflow";
$data = array(
"text" => $message
);
$actions =
[
'type' => "button",
'text' => "Report1",
'url' => "https://url.report1"
];
$data += [
"attachments" =>
[
[
"fallback" => "More details...", //I only get the message and this text in the slack
'actions' => [$actions] // or array($actions)
]
]
];
$payload = json_encode($data);
print_r($payload);
The resulting payload works in the message builder.