Non-blocking, stream-based file reader with timeouts and max content length

stream_get_contents.php

<?php

$context = stream_context_create(array(
	'http' => array(
		'method' => "GET",
		//'timeout' => 10,
		//'user_agent' => $this->user_agent,
		'max_redirects' => 10,
		'header' => "Accept-language: en\r\n"
					//. 'If-None-Match: '.$this->etag . "\r\n"
					//. 'If-Modified-Since: '.$this->last_modified . "\r\n"
	)
));

// Giant, malformed, mess of an XML feed XD
$stream = fopen('http://duga.jp/ror.xml', 'r', false, $context);

// Don't allow our stream to block forever
stream_set_blocking($stream, false);

var_dump(stream_get_meta_data($stream));

$content = '';
$size = 0;
$max_length = 1000000;
$max_time = 5;
$startTime = time();

while($stream AND ! feof($stream)) {

	if(($line = fgets($stream, 8192)) === false) {
		print "Something failed\n";
		break;
	}

	$size += mb_strlen($line);
	$content .= $line;

	if($size > $max_length) {
		print "too long\n";
		break;
	}

	if(time() - $startTime > $max_time) {
		print "Taking too long\n";
		break;
	}

	usleep(500);
}

var_dump($stream);
var_dump(feof($stream));
print mb_strlen($content) . "\n";

fclose($stream);