test-fcm

#!/usr/bin/php
<?php

$ID = getenv('DEVICE_ID');
$KEY = getenv('SERVER_KEY');

if (empty($KEY)) {
  $KEY = "AIzaSyAKhb8Q5B0EOtpQ5u087hbxKvT0O_vP9jc";
}

function sendGCM($id, $auth) {
  $url = 'https://android.googleapis.com/gcm/send';
  
  return post($url, headers($auth), fields($id));
}

function sendFCM($id, $auth) {
  $url = 'https://fcm.googleapis.com/fcm/send';

  return post($url, headers($auth), fields($id));
}

function fields($id) {
  return json_encode( array (
    'registration_ids' => array ( $id ),
    "data"    => [ "data"  => payload() ]
  ) );
}

function headers($auth) {
  return array (
    'Authorization: key=' . $auth,
    'Content-Type: application/json'
  );
}

function payload() {
  return [
    "alert"     => "Testing " . time(),
    "title"     => "The title ". time(),
    "vibrate"   => [100,50,50,50,100],
    "sound"     => "default",
    "badge"     => 1,
    "tag"       => "TestApp",
    "group"     => "Group x",
    "group_summary" => 1,
    "force_show_in_foreground" => false,
    "priority" => "max"
  ];
}

function post($url, $headers, $data) {
  $ch = curl_init ();
  curl_setopt ( $ch, CURLOPT_URL, $url );
  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_IPRESOLVE, CURL_IPRESOLVE_V4 );
  curl_setopt ( $ch, CURLOPT_POSTFIELDS, $data );
  $result = curl_exec ( $ch );
  curl_close ( $ch );
  return $result;
}

echo sendFCM($ID, $KEY);