Sending Push Notification with HTTP2 (and PHP) see entire post at: http://coding.tabasoft.it/ios/sending-push-notification-with-http2-and-php/

sendPush.txt

<?php

/**
 * @param $http2ch          the curl connection
 * @param $http2_server     the Apple server url
 * @param $apple_cert       the path to the certificate
 * @param $app_bundle_id    the app bundle id
 * @param $message          the payload to send (JSON)
 * @param $token            the token of the device
 * @return mixed            the status code (see https://developer.apple.com/library/ios/documentation/NetworkingInternet/Conceptual/RemoteNotificationsPG/Chapters/APNsProviderAPI.html#//apple_ref/doc/uid/TP40008194-CH101-SW18)
 */
function sendHTTP2Push($http2ch, $http2_server, $apple_cert, $app_bundle_id, $message, $token) {

    $milliseconds = round(microtime(true) * 1000);

    // url (endpoint)
    $url = "{$http2_server}/3/device/{$token}";

    // certificate
    $cert = realpath($apple_cert);

    // headers
    $headers = array(
        "apns-topic: {$app_bundle_id}",
        "User-Agent: My Sender"
    );

    // other curl options
    curl_setopt_array($http2ch, array(
        CURLOPT_URL => "{$url}",
        CURLOPT_PORT => 443,
        CURLOPT_HTTPHEADER => $headers,
        CURLOPT_POST => TRUE,
        CURLOPT_POSTFIELDS => $message,
        CURLOPT_RETURNTRANSFER => TRUE,
        CURLOPT_TIMEOUT => 30,
        CURLOPT_SSL_VERIFYPEER => false,
        CURLOPT_SSLCERT => $cert,
        CURLOPT_HEADER => 1
    ));

    // go...
    $result = curl_exec($http2ch);
    if ($result === FALSE) {
        throw new Exception('Curl failed with error: ' . curl_error($http2ch));
    }

    // get respnse
    $status = curl_getinfo($http2ch, CURLINFO_HTTP_CODE);

    $duration = round(microtime(true) * 1000) - $milliseconds;

//    echo $duration;

    return $status;
}

// open connection
if (!defined('CURL_HTTP_VERSION_2_0')) {
    define('CURL_HTTP_VERSION_2_0', 3);
}
$http2ch = curl_init();
curl_setopt($http2ch, CURLOPT_HTTP_VERSION, CURL_HTTP_VERSION_2_0);

// send push
$apple_cert = '/certificates/samplepush/development.pem';
$message = '{"aps":{"alert":"Hi!","sound":"default"}}';
$token = 'dbdaeae86abcde56rtyww1859fb41d2c7b2cberrttyyy053ec48987847';
$http2_server = 'https://api.development.push.apple.com';   // or 'api.push.apple.com' if production
$app_bundle_id = 'it.tabasoft.samplepush';

// close connection
for ($i = 0; $i < 20; $i++) {
    $status = sendHTTP2Push($http2ch, $http2_server, $apple_cert, $app_bundle_id, $message, $token);
    echo "Response from apple -> {$status}\n";
}

curl_close($http2ch);

How to check certificate is working or not?

You can test your certificates at that link https://pushtry.com/

What is this $http2ch param for ? And one more thing what to pass in $app_bundle_id?

400 error. Any idea?

I got "security library failure"

hi does anyone still maintains this? im getting response 200 but no notification is showing on my safari macOS. If anyone can help me pls. thank you

hi does anyone still maintains this? im getting response 200 but no notification is showing on my safari macOS. If anyone can help me pls. thank you

In my case this was due to the fact that the $message was not correctly formatted.

$message = ['aps' => ['alert' => ['title' => '...', 'body' => '...'], 'url-args' => ['']]];
$message = json_encode($message);

OP I tried using this site https://pushtry.com/. Here I observed that when I use p12 file it worked but when I used .pem file instead , it does worked. Any help ?