In this tutorial we will learn how to send the pushnotifications iPhone/ Android apps.

Below is the code that requires the follwoing elements to send the pushnotification from iPhone

1-) The device token to which we need to send the pushnotification

2-) The message

3- ) We can also send other information in the payload

<?php 

    public function notifyiPhone($token,$msg)
    {
      // For development we use 'gateway.sandbox.push.apple.com' 
      $apnsHost ='gateway.push.apple.com'; // This is for production
      $apnsCert = '/etc/file'; // this is a file with .pem extention    
      $apnsPort = 2195;  
      $passphrase =1234; 
      $error = true;
      $errorString = STREAM_CRYPTO_METHOD_SSLv23_CLIENT;
   
      $ctx = stream_context_create();

      stream_context_set_option($ctx, 'ssl', 'local_cert',$apnsCert);
	  
      $stream=stream_context_set_option($ctx, 'ssl', 'passphrase',$passphrase);
      $apns = stream_socket_client('ssl://' . $apnsHost . ':' . $apnsPort, $error, $errorString, 60, STREAM_CLIENT_CONNECT, $ctx);
		 
      if($apns === False){
		return;
      }            
      $payload['aps'] = array('alert' => $msg, 'badge' => 1, 'sound' => 'default');
      $output = json_encode($payload);
      $token = pack('H*', str_replace(' ','',$token));
      $apnsMessage = chr(0) . chr(0) . chr(32) . $token . chr(0) . chr(strlen($output)) . $output;
      $result =fwrite($apns, $apnsMessage);
    
	  
	  if (!$result)
        return  'Message not delivered ';
      else
        return $msg ;
      
	  @socket_close($apns);
      fclose($apns);
	  
    }

?>

Below is the code that requires the follwoing elements to send the pushnotification from Android

1-) The device token to which we need to send the pushnotification

2-) The message

3- ) We can also send other information in the payload

<?php 

    public function notifyAndroid($reg_id, $message)
    {
      $fields = array(
        'registration_ids'  => array( $reg_id ),
        'data'              => array( "message" => $message ),
        );
      $headers = array(
        'Authorization: key = AzklmyAGOyh1234546jigVlwnps_rf9gZsdtI', // This is the API key
        'Content-Type: application/json'
      );

      $ch = curl_init();
      curl_setopt($ch, CURLOPT_URL, 'https://android.googleapis.com/gcm/send');
      curl_setopt($ch, CURLOPT_POST, true);
      curl_setopt($ch, CURLOPT_HTTPHEADER, $headers);
      curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
      curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, false);
      curl_setopt($ch, CURLOPT_POSTFIELDS, json_encode($fields));
      $result = curl_exec($ch);
      if ($result === FALSE) {
        die('Problem occurred: ' . curl_error($ch));
      }
      curl_close($ch);
    }

?>

For more information see the below links:

https://gist.github.com/joashp/b2f6c7e24127f2798eb2

http://docs.pushwoosh.com/docs/gcm-configuration

http://docs.pushwoosh.com/docs/apns-configuration