Telegram Bot API sendPhoto url contains characters like right single quotation mark (’) - url

Question

I am using standard Telegram Bot API for sending messages. When a photo url contains a special character like a right single quotation mark (’) and left single quote (‘), the message is not sent, as it is a Bad Request.
When php rawurlencode is run, ’ shows as %E2%80%99 and ‘ as %E2%80%98
$photourl='https://example.com/some/path/name-of-image-with‘quotes’.jpg';
$array =[
'chat_id' => $uid,
'photo' => $photourl,
'caption' => $caption
];
file_get_contents("https://api.telegram.org/bot$api/sendPhoto?".http_build_query($array) );
it gives a
PHP WARNING --
failed to open stream: HTTP request failed! HTTP/1.1 400 Bad Request

Answer 1

Try this:
$photourl = 'https://example.com/some/path/name-of-image-with‘quotes’.jpg';
$filename = basename($photourl);
$photourl = str_replace($filename, urlencode($filename), $photourl); //Replace file name wirth url encoded filename
$array = [
'chat_id' => $uid,
'photo' => $photourl,
'caption' => $caption
];
file_get_contents("https://api.telegram.org/bot$api/sendPhoto?" . http_build_query($array));
Using characters like ’,‘ or * in photo parameter seem to cause a problem.
I don't have any explanation why this error occurs or how this fixes it. But you can url encode the URL's file name part before passing your query to http_build_query(), (which will encode it even a second time).