protected function parseHelloFields($type)
{
$this->server_caps = [];
$lines = explode("\n", $this->helo_rply);
foreach ($lines as $n => $s) {
//First 4 chars contain response code followed by - or space
$s = trim(substr($s, 4));
if (empty($s)) {
continue;
}
$fields = explode(' ', $s);
if (!empty($fields)) {
if (!$n) {
$name = $type;
$fields = $fields[0];
} else {
$name = array_shift($fields);
switch ($name) {
case 'SIZE':
$fields = $fields ? $fields[0] : 0;
break;
case 'AUTH':
if (!is_array($fields)) {
$fields = [];
}
break;
default:
$fields = true;
}
}
$this->server_caps[$name] = $fields;
}
}
}