Here is a demo of GCM that works:
If you refresh the page, you will notice a new random number. Only 25% of page refreshes actually send a message to GCM. Is this behavior normal or can I make some tweaks to the code to improve it?
The page does not have caching enabled.
Code:
<?php
require_once '../include/DB_Functions.php';
// Establish database connection
$db = new DB_Functions();
header("Expires: Mon, 26 Jul 1997 05:00:00 GMT");
header("Last-Modified: " . gmdate("D, d M Y H:i:s") . " GMT");
header("Cache-Control: no-store, no-cache, must-revalidate");
header("Cache-Control: post-check=0, pre-check=0", false);
header("Pragma: no-cache");
// API key for GCM
$apiKey = "xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx";
$result;
// Array to store phone registrations connected to this service
$registrationIDs = array();
$randomNum=rand(10,100);
echo "This is updateusers".$randomNum;
$_POST['message']="updateusers".$randomNum;
if (isset($_POST['message']) && $_POST['message'] != ''){
echo "<br>if (isset) updateusers".$randomNum;
// Message to be sent
$id= ''.mysql_real_escape_string(htmlentities($_POST['server_id'])).'';
$new_message= ''.mysql_real_escape_string(htmlentities($_POST['message'])).'';
// Fetch client registration IDs
$query ="SELECT * FROM GoogleCloudMsg";
$queryresult=mysql_query($query);
while($row=mysql_fetch_assoc($queryresult)){
echo "<br>While loop updateusers".$randomNum;
$regId=$row['GCMPhoneRegisteredId'];
array_push($registrationIDs,$regId);
}
// Set POST variables
$url = 'https://android.googleapis.com/gcm/send';
$fields;
if(!$id || $id==""){
$fields =
array(
'registration_ids' => $registrationIDs,
'data' => array("message" => $new_message),
'delay_while_idle'=> false,
'collapse_key'=>"".$randomNum.""
);
echo "<br> id is blank updateusers".$randomNum;
}else{
$fields =
array(
'registration_ids' => $registrationIDs,
'data' => array("message" =>$new_message,"server_id"=>$id),
'delay_while_idle' => 'false',
'collapse_key'=>"".$randomNum.""
);
echo "<br>id exists updateusers".$randomNum;
}
$headers = array('Authorization: key=' . $apiKey, 'Content-Type: application/json');
// Open connection
$ch = curl_init();
// Set the URL, number of POST vars, POST data
curl_setopt($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_POSTFIELDS, json_encode( $fields ) );
curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, false);
// curl_setopt($ch, CURLOPT_POST, true);
// curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
curl_setopt($ch, CURLOPT_POSTFIELDS, json_encode($fields));
// Execute the POST request
$result = curl_exec($ch);
// Close the connection
curl_close($ch);
echo $result;
}
echo "<br>mysql close updateusers".$randomNum;
mysql_close();
?>