Example code to reproduce SSL socket stream bug, which causes it to hang and use 100% CPU

stream_test.php

<?php

ini_set('max_execution_time', 10);

$url = 'ssl://gateway.sandbox.push.apple.com:2195';
$ssl = [
    'local_cert' => 'path/to/valid/apns_sandbox.pem',
];

$sock = stream_socket_client(
    $url,
    $errno,
    $errstr,
    ini_get('default_socket_timeout'),
    STREAM_CLIENT_CONNECT,
    stream_context_create(array(
        'ssl' => $ssl,
    ))
);

// this setting makes it use 100% cpu until timeout
// without this it also hangs until timeout, but doesn't use 100% cpu
stream_set_blocking($sock, 0);

$data = null;
if (!feof($sock)) {
    $data = fread($sock, 1024);
}

var_dump($data);

This should now be corrected upstream as noted in the original bug report