php - My page won't answer the Messenger call -


i'm developing code answers via facebook messenger , use piece of code handle answer , answer back:

if(isset($_request['hub_verify_token'])) {     if ($_request['hub_verify_token'] === a::verify_token) {         echo $_request['hub_challenge'];         exit;     } }  $input = json_decode(file_get_contents('php://input'), true);  $sender_id      = $input['entry'][0]['messaging'][0]['sender']['id']; $message_text   = $input['entry'][0]['messaging'][0]['message']['text']; $fb_handler     = new fbhandler($sender_id); /*$to_send        = array(                     'recipient' => array('id'   =>  $sender_id ),                     'message'   => array('text' => "hi" )                 );*/ $to_send        = $fb_handler->talk($message_text); $ch             = curl_init('https://graph.facebook.com/v2.6/me/messages?access_token='.a::access_token); curl_setopt_array($ch, array(     curlopt_postfields      => json_encode($to_send),     curlopt_returntransfer  => 1,     curlopt_httpheader      => array('content-type: application/json') )); $response = curl_exec($ch); error_log($response['error']); curl_close($ch);

what don't understand why commented $to_send works non-commented not, because code in a class correct, composes correctly array.

so came idea , i'm asking if it's correct (because found nothing in facebook developers documentation): possible array sent messenger has composed in same set of instructions?

i know sounds ridiculous, dunno else think.

also noticed error_log doesn't work: nothing has been written in php_errorlog file. what's happening?


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