The following code is used to catch errors and mail them to the webmaster:

<?php

/* decide what errors to report */
error_reporting (E_ALL);

/* error handler function */
function MailErrorHandler($errno, $errstr, $errfile='?', $errline= '?') 
{ 
 print " Errno=$errno Errorstring=$errstr"; 

 /* code deleted  - mails error to webmaster */
} 

set_error_handler('MailErrorHandler'); 

$undefined_var(); 


When the code above is run, I see in the browser window:

Errno=8 Errorstring=Undefined variable: undefined_var
Fatal error: Call to undefined function: () in d:\inetpub\wwwroot\php\err.php on line 14

In other words, the Fatal error is never caught by the error handler, and our webmaster never detects that it is actually a very serious error, and not just an "undefined var" E_NOTICE.

Thank you, John Lim

?>