Send Push Notification to Users Using Firebase Messaging Service in PHP. I will show you how to send unlimited free push notifications to your clients using Firebase Cloud Messaging (FCM) in your PHP web application. Push Notifications are clickable messages that come from a website. They are used to show notifications outside the web page conte…

fcm_push.php

<?php
// Server key from Firebase Console
define( 'API_ACCESS_KEY', 'AAAA----FE6F' );
$data = array("to" => "cNf2---6Vs9",
              "notification" => array( "title" => "Eagale Soluions", "body" => "A Code Sharing Company!","icon" => "icon.png", "click_action" => "http://eagalesoft.com"));                                                                    
$data_string = json_encode($data); 
echo "The Json Data : ".$data_string; 
$headers = array
(
     'Authorization: key=' . API_ACCESS_KEY, 
     'Content-Type: application/json'
);                                                                                 
                                                                                                                     
$ch = curl_init();  
curl_setopt( $ch,CURLOPT_URL, 'https://fcm.googleapis.com/fcm/send' );                                                                  
curl_setopt( $ch,CURLOPT_POST, true );  
curl_setopt( $ch,CURLOPT_HTTPHEADER, $headers );
curl_setopt( $ch,CURLOPT_RETURNTRANSFER, true );
curl_setopt( $ch,CURLOPT_POSTFIELDS, $data_string);                                                                  
                                                                                                                     
$result = curl_exec($ch);
curl_close ($ch);
echo "<p>&nbsp;</p>";
echo "The Result : ".$result;