PHP _exception_handler函数代码示例

function ark_handle_shutdown()
{
    $error = error_get_last();
    if (isset($error)) {
        _exception_handler($error['type'], $error['message'], $error['file'], $error['line']);
    }
}

 public function __call($method, $args = array())
 {
     if (in_array($method, $this->methods)) {
         return call_user_func_array(array($this->parent, $method), $args);
     }
     $trace = debug_backtrace();
     _exception_handler(E_ERROR, "No such method '{$method}'", $trace[1]['file'], $trace[1]['line']);
     exit;
 }

 public function ExceptionHandler(Exception $exception)
 {
     $class = get_class($exception);
     $message = $exception->getMessage();
     $file = $exception->getFile();
     $line = $exception->getLine();
     $error = sprintf("Uncaught exception '%s' with message '%s'", $class, $message);
     // give CI a chance to handle the error (display message, logging)
     _exception_handler(E_ERROR, $error, $file, $line);
     // bubble up if necessary
     if ($this->previousHandler) {
         $this->previousHandler($exception);
     }
     // let PHP handle the rest.
     throw $exception;
 }

 public function phpFunctions()
 {
     $arg_list = func_get_args();
     $function = array_shift($arg_list);
     if (is_callable($function)) {
         return call_user_func_array($function, $arg_list);
     }
     if (!$this->env->isDebug()) {
         return null;
     }
     $trace = debug_backtrace(null, 2);
     $debugInfo = $this->getDebugInfo($trace);
     $errMsg = 'Called to an undefined function : <b>php_' . $function . "</b> ";
     if (isset($debugInfo['file'], $debugInfo['line'])) {
         _exception_handler(E_USER_NOTICE, $errMsg, $debugInfo['file'], $debugInfo['line']);
     } else {
         trigger_error($errMsg, E_USER_NOTICE);
     }
     return NULL;
 }

 /**
  * Shutdown Handler
  *
  * This is the shutdown handler that is declared at the top
  * of CodeIgniter.php. The main reason we use this is to simulate
  * a complete custom exception handler.
  *
  * E_STRICT is purposivly neglected because such events may have
  * been caught. Duplication or none? None is preferred for now.
  *
  * @link	http://insomanic.me.uk/post/229851073/php-trick-catching-fatal-errors-e-error-with-a
  * @return	void
  */
 function _shutdown_handler()
 {
     $last_error = error_get_last();
     if (isset($last_error) && $last_error['type'] & (E_ERROR | E_PARSE | E_CORE_ERROR | E_CORE_WARNING | E_COMPILE_ERROR | E_COMPILE_WARNING)) {
         _exception_handler($last_error['type'], $last_error['message'], $last_error['file'], $last_error['line']);
     }
 }

 function http_build_query($formdata, $numeric_prefix = NULL, $separator = NULL)
 {
     // Check the data
     if (!is_array($formdata) && !is_object($formdata)) {
         $backtrace = debug_backtrace();
         _exception_handler(E_USER_WARNING, 'http_build_query() Parameter 1 expected to be Array or Object. Incorrect value given', $backtrace[0]['file'], $backtrace[0]['line']);
         return FALSE;
     }
     // Cast it as array
     if (is_object($formdata)) {
         $formdata = get_object_vars($formdata);
     }
     // If the array is empty, return NULL
     if (empty($formdata)) {
         return NULL;
     }
     // Argument separator
     if ($separator === NULL) {
         $separator = ini_get('arg_separator.output');
         if (strlen($separator) == 0) {
             $separator = '&';
         }
     }
     // Start building the query
     $tmp = array();
     foreach ($formdata as $key => $val) {
         if ($val === NULL) {
             continue;
         }
         if (is_integer($key) && $numeric_prefix != NULL) {
             $key = $numeric_prefix . $key;
         }
         if (is_resource($val)) {
             return NULL;
         }
         // hand it off to a recursive parser
         $tmp[] = _http_build_query_helper($key, $val, $separator);
     }
     return implode($separator, $tmp);
 }

 */
$EXT->call_hook('post_controller_constructor');
/*
 * ------------------------------------------------------
 *  Call the requested method
 * ------------------------------------------------------
 */
try {
    call_user_func_array(array(&$CI, $method), $params);
} catch (Exception $exception) {
    $OUT->set_status_header($exception->getCode(), lang($exception->getMessage()));
    if (!$IN->accept('application/json')) {
        if (in_array(ENVIRONMENT, array('testing', 'production'))) {
            show_error(lang($exception->getMessage()), $exception->getCode());
        } elseif (ENVIRONMENT === 'development') {
            _exception_handler(E_NOTICE, lang($exception->getMessage()), $exception->getFile(), $exception->getLine());
        }
    }
}
// Mark a benchmark end point
$BM->mark('controller_execution_time_( ' . $class . ' / ' . $method . ' )_end');
/*
 * ------------------------------------------------------
 *  Is there a "post_controller" hook?
 * ------------------------------------------------------
 */
$EXT->call_hook('post_controller');
/*
 * ------------------------------------------------------
 *  Send the final rendered output to the browser
 * ------------------------------------------------------

 /**
  * @param $methodName
  * @return null
  */
 private function _handle_exception($methodName)
 {
     if (!function_exists('_exception_handler')) {
         return null;
     }
     $trace = debug_backtrace(null, 1);
     $errMsg = 'Undefined method : ' . get_class($this) . "::" . $methodName . " called";
     _exception_handler(E_USER_NOTICE, $errMsg, $trace[0]['file'], $trace[0]['line']);
 }