Telegram BOT Api: how to send a photo using PHP?

Question

The sendPhoto command require an argument photo defined as InputFile or String.

The API doc tells:

Photo to send. You can          


        

Answer 1

This is my working solution, but it requires PHP 5.5:

$bot_url    = "https://api.telegram.org/bot/";
$url        = $bot_url . "sendPhoto?chat_id=" . $chat_id ;

$post_fields = array('chat_id'   => $chat_id,
    'photo'     => new CURLFile(realpath("/path/to/image.png"))
);

$ch = curl_init(); 
curl_setopt($ch, CURLOPT_HTTPHEADER, array(
    "Content-Type:multipart/form-data"
));
curl_setopt($ch, CURLOPT_URL, $url); 
curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1); 
curl_setopt($ch, CURLOPT_POSTFIELDS, $post_fields); 
$output = curl_exec($ch);