/**
* SocketPingWrapper::Ping()
*
* @return boolean true when ping is executed false when ping failed to execute.
*/
function Ping($try = array('http', 'ftp', 'telnet', 'mail'))
{
if (empty($try)) {
$try = array('http', 'ftp', 'telnet', 'mail');
} else {
if (!is_array($try)) {
$try = array($try);
}
}
if (empty($this->mInput)) {
if (false !== $this->mDebug) {
echo "Error: no ping target specified.";
}
return false;
}
if (!is_array($this->mInput)) {
$this->mInput = array($this->mInput);
}
foreach ($this->mInput as $key => $host) {
$this->mInfo = array();
$up = false;
foreach ($try as $service) {
$tping = new TcpPing($host, $service);
if ($result = $tping->Ping()) {
$up = true;
$this->mInfo[] = "service={$service} time=" . $tping->GetTime();
break;
} else {
/**
* If current error message is different from the last one, take it.
*/
if (!sizeof($this->mInfo) || $tping->GetErrorMessage() != $this->mInfo[sizeof($this->mInfo) - 1]) {
$this->mInfo[] = $tping->GetErrorMessage();
}
}
}
$this->mOutput[] = "{$host} [" . $tping->GetTargetAddress() . "] is " . ($up ? 'Alive.' : 'Down!!') . ' ' . implode(" ", $this->mInfo);
}
return true;
}
