Common issue due to widespread teaching of try catch: echo $e->getMessage()

Safe methods:

1) Define environment testing: testing / production

Production setting:

1) Use logger class (that may mailer function to inform developers)

2) Issue generic error message

// Pseudo by Myo Soe, https://yehg.net

try{
 ....
} catch(Exception $e){
    if ($this->env['debug'] == true){
        echo $e->getMessage();
    }else{
        $logger->error($e->getMessage());
        echo 'An error has ocurred';
    }
}

Resource:

https://github.com/katzgrau/KLogger