***CI异常记录到日志：CodeIgniter中设计一个全局exception hook

$hook['pre_controller'][] = array( 
                   'class'    => 'ExceptionHook', 
                   'function' => 'SetExceptionHandler', 
                   'filename' => 'ExceptionHook.php', 
                   'filepath' => 'hooks' 
                  ); 

<?php 

class ExceptionHook 
{ 
  public function SetExceptionHandler() 
  { 
    set_exception_handler(array($this, 'HandleExceptions')); 
  } 
   
  public function HandleExceptions($exception) 
  { 

  $msg ='Exception of type \''.get_class($exception).'\' occurred with Message: '.$exception->getMessage().' in File '.$exception->getFile().' at Line '.$exception->getLine(); 

        $msg .="\r\n Backtrace \r\n"; 
$msg .=$exception->getTraceAsString(); 

        log_message('error', $msg, TRUE); 

        
mail('dev-mail@example.com', 'An Exception Occurred', $msg, 'From: test@example.com');    


} 
?>