throw new Exception("confPort() failed");
}
if (!$s->deviceOpen()) {
throw new Exception("deviceOpen() failed");
}
if (!$s->confBlocking(false)) {
throw new Exception("confBlocking() failed");
}
} catch (Exception $e) {
print "exception: {$e}\n";
die;
}
$print_after_read = false;
$keystring = "";
do {
$r = array($s->getFilehandle());
$w = null;
$e = null;
$ready_count = stream_select($r, $w, $e, NULL);
if ($ready_count !== false && $ready_count > 0) {
$keylen = $s->readPort($keystring);
if ($print_after_read) {
print "readPort() returned {$keylen} bytes\n";
}
if (strlen($keystring) >= 16) {
try {
$key = new rfid_key($keystring);
print "received valid rfid key: {$key}\n";
$keystring = "";
// consume the string after success
} catch (Exception $e) {
