onesignal.php

<?php
//no login, o id do aparelho é enviado ao banco
if (isset($post['pushid'])) {
  //insere no banco o id do aparelho
  $query = "UPDATE login SET push_id = '" . $post['pushid'] . "' WHERE id_login = " . $usuario->id_login;
  $push_conn->query($query);

  //isso é opcional, é para atualizar no site do onesignal o grupo do usuário
  $playerID = $post['pushid'];
  $fields = array(
    'app_id' => '',
    'tags' => array('condo' => "$condo")
  );
  $fields2 = json_encode($fields);
  $ch = curl_init();
  curl_setopt($ch, CURLOPT_URL, 'https://onesignal.com/api/v1/players/' . $playerID);
  curl_setopt($ch, CURLOPT_HTTPHEADER, array('Content-Type: application/json'));
  curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
  curl_setopt($ch, CURLOPT_HEADER, false);
  curl_setopt($ch, CURLOPT_CUSTOMREQUEST, "PUT");
  curl_setopt($ch, CURLOPT_POSTFIELDS, $fields2);
  curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, false);
  curl_exec($ch);
  curl_close($ch);
}

//quando algum evento é disparado, o push é enviado ao aparelho do usuário
function fn_push_reserva_confirmada($pushId) {
  $fields = array(
    'app_id' => "",
    'include_player_ids' => array($pushId),
    //'headings' => array("en" => "Reserva"),
    'contents' => array("en" => "Reserva confirmada.")
  );
  
  fn_send_push($fields);
}

function fn_send_push($fields) {
    $ch = curl_init();
    curl_setopt($ch, CURLOPT_URL, "https://onesignal.com/api/v1/notifications");
    curl_setopt($ch, CURLOPT_HTTPHEADER, array('Content-Type: application/json; charset=utf-8', 'Authorization: Basic '));
    curl_setopt($ch, CURLOPT_RETURNTRANSFER, TRUE);
    curl_setopt($ch, CURLOPT_HEADER, FALSE);
    curl_setopt($ch, CURLOPT_POST, TRUE);
    curl_setopt($ch, CURLOPT_POSTFIELDS, json_encode($fields));
    curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, FALSE);
    curl_exec($ch);
    curl_close($ch);
}