How to die Magento immediately when getting an exception?

I got a problem when try to get a helper:

Mage::helper('providers')

In fact, the provider helper is not exist.

But it just out an exception and save it into the file: var/log/exception.log and everything is ok, except I could not see the interface which I want.

I need a way to do if I got any exception, Magento wi开发者_如何学Pythonll exit immediately and show the messages on the browser.

Turn on developer mode, and make sure PHP is showing errors.

Open up index.php and change this

if (isset($_SERVER['MAGE_IS_DEVELOPER_MODE'])) {
    Mage::setIsDeveloperMode(true);
}

#ini_set('display_errors', 1);

To this

#if (isset($_SERVER['MAGE_IS_DEVELOPER_MODE'])) {
    Mage::setIsDeveloperMode(true);
#}

ini_set('display_errors', 1);

With developer mode on Exceptions will halt execution instead of being logged.

Also, you could skip comment the if block out by adding the apache environmental variable to MAGE_IS_DEVELOPER_MODE to your .htaccess file and setting it to 1.

Try wrapping the call in a try catch block, i.e.

try {
  Mage::helper('providers');
}
catch (Exception $e){
  echo $e;
}