if ( ! function_exists('_error_handler')) { function _error_handler($severity, $message, $filepath, $line) { $is_error = (((E_ERROR | E_COMPILE_ERROR | E_CORE_ERROR | E_USER_ERROR) & $severity) === $severity); if ($is_error) { set_status_header(500); } if (($severity & error_reporting()) !== $severity) { return; } $_error =& load_class('Exceptions', 'core'); $_error->log_exception($severity, $mess