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We have developed an iOS App on Ionic Framework. The server side code is in PHP. We are not able to send push notification through PHP API to APNS server ( on iPhone device ). Analysis : We have investigated our side that required ports (2195 and 2196) are open, firewall is enabled at hosting site. We have generated .pem file and Device token on client side and tested successfully using java api but facing issue with php api. We received response by using PHP code - Connection timeout We need to solve this issue ASAP. PHP Code : $deviceToken ='ji78c2433a76b2d977a4abe0f01306dd956ac4c4a3679a70b95d'; $passphrase = '**********'; $message = 'hi ...its a test push'; $ctx = stream_context_create(); stream_context_set_option($ctx, 'ssl', 'local_cert', '[login to view URL]'); stream_context_set_option($ctx, 'ssl', 'passphrase', $passphrase); // Open a connection to the APNS server $fp = stream_socket_client( 'ssl://[login to view URL]', $error, $errorString, 60, STREAM_CLIENT_CONNECT|STREAM_CLIENT_PERSISTENT, $ctx); if (!$fp) { echo 'Iphone Notification : Failed to connect:-'.$errorString; // echo 'not Connected to APNS'.PHP_EOL; } else { // Create the payload body $body['aps'] = array( 'alert' => $message, 'sound' => 'default', "badge"=> 1 ); // Encode the payload as JSON $payload = json_encode($body); // Build the binary notification $msg = chr(0) . pack('n', 32) . pack('H*', $deviceToken) . pack('n', strlen($payload)) . $payload; // Send it to the server $result = fwrite($fp, $msg, strlen($msg)); if (!$result) echo 'Iphone Notification : Message not delivered'; else echo 'Iphone Notification : Message delivered'; // Close the connection to the server fclose($fp); }