Inline keyboard Telegram bot [PHP] - php

Question

I want that my bot when I write /orario he answer me with a inline keyboard.
So.. I created an array for my keyboard in this way:
$tastierino_giorno = '[{"text":"Testo","callback_data":"StampaMessaggio"}]';
and in another function I write this:
function tastieraInline($chatid, $tastierino)
{
global $token;
$messaggio = "Scegli per che giorno inviare il messaggio:";
$tastiera = '&reply_markup={"inline_keyboard":
['.urlencode($tastierino).'],"resize_keyboard":true}';
$url = "https://api.telegram.org/$token/sendMessage?chat_id=$chatId&parse_mode=HTML&text=".urlencode($messaggio).$tastiera;
file_get_contents($url);
}
After this, with an if, I check if the users has write "/orario".
} elseif($message == "/orario"){
tastieraInline($chatid, $tastierino_giorno);
}
Now the problem is that it doesn't works... what's the problem?

Answer 1

Change
$tastiera = '&reply_markup={"inline_keyboard":
['.urlencode($tastierino).'],"resize_keyboard":true}';
to
$tastiera = '&reply_markup='.urlencode('{"inline_keyboard":
['.$tastierino.'],"resize_keyboard":true}');
you should URL encode the whole JSON data

Answer 2

You should pay attention to the result returned from your telegram calls. file_get_contents is great for getting something working quickly but doesn't return any error information.
You should use curl or a library like guzzle. An example for curl:
$ch = curl_init( $url );
if ( $ch == FALSE )
{
error_log( "Error initialising curl" );
return FALSE;
}
curl_setopt( $ch, CURLOPT_HTTP_VERSION, CURL_HTTP_VERSION_1_1 );
curl_setopt( $ch, CURLOPT_POST, 0 );
curl_setopt( $ch, CURLOPT_RETURNTRANSFER, 1 );
curl_setopt( $ch, CURLOPT_SSL_VERIFYPEER, 1 );
curl_setopt( $ch, CURLOPT_SSL_VERIFYHOST, 2 );
curl_setopt( $ch, CURLOPT_FORBID_REUSE, 1 );
// Set TCP timeout to 30 seconds
curl_setopt( $ch, CURLOPT_CONNECTTIMEOUT, 30 );
curl_setopt( $ch, CURLOPT_HTTPHEADER, array( 'Connection: Close' ) );
$result = curl_exec( $ch );
$error = curl_errno( $ch );
$errorStr = curl_error( $ch );
curl_close( $ch );
if ( $error != 0 )
{
return array( $errorStr, $result );
}
return $result;
Guzzle is a lot simpler if you don't mind installing an additional library.
Hopefully this will get you the error string from your failed telegram calls.
Onto your actual issue. You should create json for the keyboard markup using json_encode rather than appending strings. http_build_query makes building URLs much easier.