multichain_server.php

<?php
ini_set('max_execution_time', 0);
$host="10.xxx.x.xx";
$port="999";
$user="username";
$password="password";
$url='http://'.$host.':'.$port.'/';
$strUserPass64= base64_encode($user.':'.$password);
$method="publish";
$params=array("mystream","key9991","AB");
$payload=json_encode(array(
    'method' => $method,
    'params' => $params,
));
$header='Content-Type: application/json'."\r\n".
    'Content-Length: '.strlen($payload)."\r\n".
    'Connection: close'."\r\n".
    'Authorization: Basic '.$strUserPass64."\r\n";
$options = array(
    'http' => array(
        'header'  => $header,
        'method'  => 'POST',
        'content' => $payload
    )
);
$context  = stream_context_create($options);
for($i=0;$i<20;$i++){
    echo "req start";
    $response = file_get_contents($url, false, $context);
    echo $response; 
    echo "req end";
    echo "<br>";
}
?>