Error-handling code

[raytri]

I'm just starting to explore custom error-handling routines.

 

I've written the following, and it works. The idea is to make sure error messages aren't show to the user unless there is a fatal error, and then it's a custom message. Meanwhile, the detailed error message is e-mailed to me, both for fatal errors and warnings.

 

Is this a good approach for error-handling code? Or am I missing something big?

 

(I know there's some redundancy, like I could combine two of the "if" statements in the customError() function, and I'm pretty sure that any error capable of causing a shutdown is by definition serious, so the "if" statement in the fatalErrorShutdownHandler() function is unnecessary. But is the basic structure sound?)

 

<?php
//Don't show errors to user
ini_set('display_errors', 0);

//Trigger customer error function when a fatal error aborts the script
register_shutdown_function('fatalErrorShutdownHandler');

// the function
function customError($errno, $errstr, $errfile, $errline)
  {

//For fatal errors, display custom message
  if($errno < 4) {ob_end_clean(); ?>
  <h1>Error loading page</h1>
  <p>The website encountered an error loading your page. The Website administrator has been notified; please try reloading the page. If that doesn't work, please try again later.</p>
  <p>If the error persists, please notify us at <a href="[email protected]">[email protected]</a></p>

  <?php }
//Report both fatal errors and warnings
   if($errno <  {
  //Include full URI of page that triggered the error
    $badpage = $_SERVER['REQUEST_URI'];
      error_log("Error: [$errno] $errstr in $errfile on line $errline. \n\n URI is $badpage",1,
  "[email protected]","From: [email protected]");}

//If it's a fatal error, kill the rest of the page
if($errno < 4) {die();}
  }

//Triggers error reporting in the event of a fatal error shutdown
function fatalErrorShutdownHandler() {
//gets error that caused the shutdown   
$error = error_get_last();
    //Only sends error message for serious errors
    if ($error['type'] <  {
        customError($error['type'], $error['message'], $error['file'], $error['line']);
    }
}

//sets custom error handler for non-fatal errors
set_error_handler("customError");

//buffer page output so errors can be caught before anything is output to page
ob_start();
?>