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

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

$bot_url    = "https://api.telegram.org/bot<bot_id>/";$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);

This code helps me alot which I get from php.net website here

Visit http://php.net/manual/en/class.curlfile.php#115161(Vote Up this code in php website).

I just change headers in this code for telegram bot to send image just copy this function

function curl_custom_postfields($ch, array $assoc = array(), array $files = array()) {          // invalid characters for "name" and "filename"          static $disallow = array("\0", "\"", "\r", "\n");          // build normal parameters          foreach ($assoc as $k => $v) {              $k = str_replace($disallow, "_", $k);              $body[] = implode("\r\n", array(                  "Content-Disposition: form-data; name=\"{$k}\"",                  "",                  filter_var($v),              ));          }          // build file parameters          foreach ($files as $k => $v) {              switch (true) {                  case false === $v = realpath(filter_var($v)):                  case !is_file($v):                  case !is_readable($v):                      continue; // or return false, throw new InvalidArgumentException              }              $data = file_get_contents($v);              $v = call_user_func("end", explode(DIRECTORY_SEPARATOR, $v));              $k = str_replace($disallow, "_", $k);              $v = str_replace($disallow, "_", $v);              $body[] = implode("\r\n", array(                  "Content-Disposition: form-data; name=\"{$k}\"; filename=\"{$v}\"",                  "Content-Type: image/jpeg",                  "",                  $data,              ));          }          // generate safe boundary          do {              $boundary = "---------------------" . md5(mt_rand() . microtime());          } while (preg_grep("/{$boundary}/", $body));          // add boundary for each parameters          array_walk($body, function (&$part) use ($boundary) {              $part = "--{$boundary}\r\n{$part}";          });          // add final boundary          $body[] = "--{$boundary}--";          $body[] = "";          // set options          return @curl_setopt_array($ch, array(              CURLOPT_POST       => true,              CURLOPT_POSTFIELDS => implode("\r\n", $body),              CURLOPT_HTTPHEADER => array(                  "Expect: 100-continue",                  "Content-Type: multipart/form-data; boundary={$boundary}", // change Content-Type              ),          ));      }

Basic Try:Now just use this code by sending photo name with path and chat id here is it how:-

$array1=array('chat_id'=><here_chat_id>);$array2=array('photo'=>'index.jpg') //path$ch = curl_init();       curl_setopt($ch, CURLOPT_URL,"https://api.telegram.org/<bot_token>/sendPhoto");curl_custom_postfields($ch,$array1,$array2);//above custom function$output=curl_exec($ch);close($ch);

For sending png or other methods change curl_custom function according to your need.

I searched a lot online but didn't find the answer. But, your question solved my problem ... I just changed your code and that answered it for me ...I changed your code to this:

$chat_id=chat Id Here;$bot_url    = "https://api.telegram.org/botYOUR_BOT_TOKEN/";$url = $bot_url . "sendPhoto?chat_id=" . $chat_id;$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($ch, CURLOPT_POSTFIELDS, array(    "photo"     => "@path/to/image.png", )); curl_setopt($ch, CURLOPT_INFILESIZE, filesize("path/to/image.png"));$output = curl_exec($ch);print$output;