php - How to prevent an error to display to user -

i have simple code sending mails. sometime $host might not available or smtp server might down happens in these cases swiftmailer throws lot of exceptions , $result despite of returning true or false give me complete mess of errors.

so how can turn off errors page of code but not whole library?

    $transport = swift_smtptransport::newinstance(self::$host, 25)     ->setusername(self::$username)     ->setpassword(self::$password);      //create mailer using created transport     $mailer = swift_mailer::newinstance($transport);     $message = swift_message::newinstance("custom sheets");     $message->setfrom(array('edb@abc.com.pk' => 'approval of custom duty sheet'));     $message->setto($to);     $message->setbody($html,'text/html');     //send message     $result = $mailer->send($message); 

you can catch exception , handle it:

try {     $transport = swift_smtptransport::newinstance(self::$host, 25)             ->setusername(self::$username)             ->setpassword(self::$password);      //create mailer using created transport     $mailer = swift_mailer::newinstance($transport);     $message = swift_message::newinstance("custom sheets");     $message->setfrom(array('edb@abc.com.pk' => 'approval of custom duty sheet'));     $message->setto($to);     $message->setbody($html,'text/html');     //send message     $result = $mailer->send($message); } catch(exception $e) {     // handle error here } 

turning off errors / warnings / notices in general:

error_reporting(-1);