php异常没有捕获

Question

我正在尝试捕获异常，但无法，只是收到错误消息

try{
    echo 'test';
    require_once "jj.php";
    return true;
} catch (Exception $ex) {
    throw new Exception("error occured");
}



 Warning: require_once(jj.php): failed to open stream: No such file or directory in C:\xampp\htdocs\corporate-wellness\module\Survey\src\Survey\Repository\QuestionRepository.php on line 

Answer 1

这不是例外（但是警告），所以你不能简单地抓住它。

您可以改为禁止警告（在此方案中不推荐）或使用某些内容来验证file exists

所以，像

try {
    if(!file_exists("jj.php")) {
        throw new Exception("File doesn't exists");
    }
    require_once "jj.php";
    return true;
} catch (Exception $ex) {
    // if you would you can handle exception here or you can simply
    // throw exception without try - catch block
}