Yii2? ????? ??? ?????? ??? ???? Yii2? ???? ?? ?? ???? ?????? ??? ? ??? ?? ??????. ?? ?? ??? ??? ? ??? ?? ???? ?????? ??? ????.
???? ???? ??: ????? ??? ???? ???? ??? try catch? ??? ??? ? ???? "(?? ??: iyii ????? )
??? PHP?? ???? ??? ?? ?? API? ????. ????? ??? ?? ? ???? ??? ??? ??? ? ????. ??? yii2? ?? ?????. PHP? ??? set_error_handler? ?? ??? ?????.Yii2 ?? ??? ??
?? ??????? ??? ?? ??? ?????? ??? ?? ?? ??? ???? ??? ?????. ：return [
// ...
'components' => [
// ...
'errorHandler' => [
'errorAction' => 'site/error',
],
]
// ...
];Yii2 ?? ?? ??. method
Yii2 ?? ??? ?? ???? ??? Yii2 ?? ??? ??? ???? ??? ????? ?? ??? Yii2? yiiwebErrorHandler ??? ??? handlerException ? handlerError ???? ?????.
???? handlerException? ????. ? yiiwebErrorHandler ???? handlerError ???? ??? ?? ?? ????? yiibaseErrorHandler? ????. ? ? ??? ?? yiiwebErrorHandler? renderException ???? ?????.# yii\web\ErrorHandler
/**
* Renders the exception.
* @param \Exception $exception the exception to be rendered.
*/
protected function renderException($exception)
{
// ...
// 注意：控制錯誤是否能自定義的關鍵
// !YII_DEBUG 表示了如果你現(xiàn)在是在 Debug 模式下，那么不能自定義錯誤
// 即使你配置了組件的 'errorHandler' => ['errorAction' => 'site/error'] 參數(shù)
$useErrorView = $response->format === Response::FORMAT_HTML && (!YII_DEBUG || $exception instanceof UserException);
// 傳遞到自定義錯誤處理方法
if ($useErrorView && $this->errorAction !== null) {
$result = Yii::$app->runAction($this->errorAction);
if ($result instanceof Response) {
$response = $result;
} else {
$response->data = $result;
}
}
// ...
}?? ?? ?? ??? renderException?? ? ? ????. ??? ????? ??? ??? ?? ??? ??? ???? ??? yii2 ??? ?? ?? ??? ?? ?????. ??? ??? PHP ??? ????? ?? ?? ??? ?????!
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