How can I optimise sending push notification in CodeIgniter PHP? - php

Question

Problem
I am trying to send push notification through PHP, to both Android and iOS, but I have lots of devices to send the notification, and you can see the code that it sends the notification to all of them in a loop. It's really not optimized as my dashboard gets stuck for more than a minute due to the running loop, also somehow it is not even sending a notification to all active accounts.
Can anyone here help me out?
Code
public function insert()
{
// Set the validation rules
$this->form_validation->set_rules('title', 'Title', 'required|trim');
// If the validation worked
if ($this->form_validation->run())
{
$get_post = $this->input->get_post(null,true);
$get_post['tags'] = is_array($this->input->get_post('tags')) ? $this->input->get_post('tags') : [];
if(count($get_post['tags']) == 0)
{
$_SESSION['msg_error'][] = "Tags is a required field";
redirect('admin/newsfeed/insert');
exit;
}
# File uploading configuration
$upload_path = './uploads/newsfeeds/';
$config['upload_path'] = $upload_path;
$config['allowed_types'] = 'gif|jpg|png|jpeg';
$config['encrypt_name'] = true;
$this->load->library('upload', $config);
$image = '';
# Try to upload file now
if ($this->upload->do_upload('image'))
{
# Get uploading detail here
$upload_detail = $this->upload->data();
$image = $upload_detail['file_name'];
} else {
$uploaded_file_array = (isset($_FILES['image']) and $_FILES['image']['size'] > 0 and $_FILES['image']['error'] == 0) ? $_FILES['image'] : '';
# Show uploading error only when the file uploading attempt exist.
if( is_array($uploaded_file_array) )
{
$uploading_error = $this->upload->display_errors();
$_SESSION['msg_error'][] = $uploading_error;
}
}
# File uploading configuration
$upload_path = './uploads/newsfeeds/';
$config['upload_path'] = $upload_path;
$config['allowed_types'] = '*';
$config['encrypt_name'] = true;
$config['max_size'] = 51200; //KB
$this->upload->initialize($config);
$audio = '';
# Try to upload file now
if ($this->upload->do_upload('audio'))
{
# Get uploading detail here
$upload_detail = $this->upload->data();
$audio = $upload_detail['file_name'];
}
else
{
$uploaded_file_array = (isset($_FILES['audio']) and $_FILES['audio']['size'] > 0 and $_FILES['audio']['error'] == 0) ? $_FILES['audio'] : '';
# Show uploading error only when the file uploading attempt exist.
if( is_array($uploaded_file_array) )
{
$uploading_error = $this->upload->display_errors();
$_SESSION['msg_error'][] = $uploading_error;
}
}
$get_post['image'] = $image;
$get_post['audio'] = $audio;
if($id = $this->newsfeed_model->insert($get_post))
{
if($get_post['status'])
{
// send push notification to all users
$notification = $this->newsfeed_model->get_newsfeed_by_id($id);
$notification->notification_type = 'article';
$notification->title = $get_post['n_title'];
$notification->body = $get_post['n_description'];
$query = $this->db->get_where('users', ['device_id !=' => '']);
foreach ($query->result() as $row) {
if ($row->device == 'IOS') {
$this->notification_model->sendPushNotificationIOS($row->device_id, $notification);
}
if ($row->device == 'ANDROID') {
$this->notification_model->sendPushNotificationAndroid($row->device_id, $notification);
}
}
}
$_SESSION['msg_success'][] = 'Record added successfully...';
if($image){
redirect('admin/newsfeed/crop_image?id='.$id);
} else {
redirect('admin/newsfeed/');
}
}
}
$this->data['selected_page'] = 'newsfeed';
$this->load->view('admin/newsfeed_add', $this->data);
}
Description
The method is adding a newsfeed, its checks for the validations, then it inserts the feed to the db, once thats done, it sends out the notification to all devices.
Problematic Chunk
if($id = $this->newsfeed_model->insert($get_post))
{
if($get_post['status'])
{
// send push notification to all users
$notification = $this->newsfeed_model->get_newsfeed_by_id($id);
$notification->notification_type = 'article';
$notification->title = $get_post['n_title'];
$notification->body = $get_post['n_description'];
$query = $this->db->get_where('users', ['device_id !=' => '']);
foreach ($query->result() as $row) {
if ($row->device == 'IOS') {
$this->notification_model->sendPushNotificationIOS($row->device_id, $notification);
}
if ($row->device == 'ANDROID') {
$this->notification_model->sendPushNotificationAndroid($row->device_id, $notification);
}
}
}
$_SESSION['msg_success'][] = 'Record added successfully...';
if($image) {
redirect('admin/newsfeed/crop_image?id='.$id);
} else{
redirect('admin/newsfeed/');
}
}
Thank you in advance.