Google Cloud Messaging: Send message to “all” users
Question
I am following this tutorial to understand the system of GCM. I have a question regarding this part:
It is possible to send messages to every single registered user, but how to change that code so I can send a single message to ALL registered devices?
I've already looked for answers:
sending push notifications to multiple android devices using GCM
and
Sending Push Notification on multiple devices
(nearly same question) - but could not find any answer solving my question.
<body>
<?php
include_once 'db_functions.php';
$db = new DB_Functions();
$users = $db->getAllUsers();
if ($users != false)
$no_of_users = mysql_num_rows($users);
else
$no_of_users = 0;
?>
<div class="container">
<h1>No of Devices Registered: <?php echo $no_of_users; ?></h1>
<hr/>
<ul class="devices">
<?php
if ($no_of_users > 0) {
?>
<?php
while ($row = mysql_fetch_array($users)) {
?>
<li>
<form id="<?php echo $row["id"] ?>" name="" method="post" onsubmit="return sendPushNotification('<?php echo $row["id"] ?>')">
<label>Name: </label> <span><?php echo $row["name"] ?></span>
<div class="clear"></div>
<label>Email:</label> <span><?php echo $row["email"] ?></span>
<div class="clear"></div>
<div class="send_container">
<textarea rows="3" name="message" cols="25" class="txt_message" placeholder="Type message here"></textarea>
<input type="hidden" name="regId" value="<?php echo $row["gcm_regid"] ?>"/>
<input type="submit" class="send_btn" value="Send" onclick=""/>
</div>
</form>
</li>
<?php }
} else { ?>
<li>
No Users Registered Yet!
</li>
<?php } ?>
</ul>
</div>
</body>
i tried to change the code, but with my change it does not work..
I want to put all regID as array into sendPushNofiy...
<body>
<?php
include_once 'db_functions.php';
$db = new DB_Functions();
$users = $db->getAllUsers();
if ($users != false)
$no_of_users = mysql_num_rows($users);
else
$no_of_users = 0;
?>
<div class="container">
<h1>No of Devices Registered: <?php echo $no_of_users; ?></h1>
<hr/>
<ul class="devices">
<?php
if ($no_of_users > 0) {
?>
<?php
<li>
$rows = array();
while(($row = mysql_fetch_array($users))) {
$rows[] = $row['id'];
}
<form id="<?php echo $rows ?>" name="" method="post" onsubmit="return sendPushNotification('<?php echo $rows ?>')">
<label>Name: </label> <span><?php echo $row["name"] ?></span>
<div class="clear"></div>
<label>Email:</label> <span><?php echo $row["email"] ?></span>
<div class="clear"></div>
<div class="send_container">
<textarea rows="3" name="message" cols="25" class="txt_message" placeholder="Type message here"></textarea>
<input type="hidden" name="regId" value="<?php echo $row["gcm_regid"] ?>"/>
<input type="submit" class="send_btn" value="Send" onclick=""/>
</div>
</form>
</li>
<?php
} else { ?>
<li>
No Users Registered Yet!
</li>
<?php } ?>
</ul>
</div>
</body>
with this I can get all regids into the array rows... but how can i transfer the array into the form?
while ($row = mysql_fetch_array($users)) {
$rows[] = $row["gcm_regid"];
}
my problem is how to send my array "row" to send_message.php?
$registatoin_ids = array($regId); << it does already handles array, but my input works only with one value, i want to transfer array^^
EDIT: send_message.php
<?php
if (isset($_GET["regId"]) && isset($_GET["message"])) {
$regId = $_GET["regId"];
$message = $_GET["message"];
include_once './GCM.php';
$gcm = new GCM();
$registatoin_ids = array($regId);
$message = array("price" => $message);
$result = $gcm->send_notification($registatoin_ids, $message);
echo $result;
}
?>
2 answers
solution1
6 2014-11-29 13:06:57
It's your responsibility to maintain a list of the Registration IDs of all the registered users. There's no API call to send a message to all registered users. You can send to GCM server a request with up to 1000 Registration IDs. If you have more than 1000 registered users, you'll have to split them to multiple requests.
solution2
2 2015-07-08 18:53:12
<?php
if (isset($_GET["message"])) {
include_once 'db_functions.php';
$db = new DB_Functions();
$users = $db->getAllUsers();
$regIds = array();
if ($users != false){
while ($row = mysqli_fetch_array($users)) {
$regIds[] = $row["gcm_regid"];
}
}
include_once './GCM.php';
$gcm = new GCM();
$registatoin_ids = $regIds;
$message = "array("price" => $_GET["message"])";
$result = $gcm->send_notification($registatoin_ids, $message);
echo $result;
}
?>
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