这是try-catch-finally的可接受的用法吗？

Question

基本上我正在寻找一些澄清，这将是一个可以接受的尝试使用，终于抓住？基于它的电子邮件和用户名是唯一的一张表

try 
    { 
     $db = new Database; 
     $success = ["message" => "Please check your Email address to activate your account"]; 
     $process = $db->prepare('INSERT INTO users (username, email, password, profileImg, profileImgPath, profileImgType, accountStatus, verified, joined) 
     VALUES 
     (:username, :email, :password, :filename, :filepath, :filetype, :activationCode, 0, NOW())'); 
     $process->bindValue(':username', $username); 
     $process->bindValue(':email', $email); 
     $process->bindValue(':password', password_hash($post['password'], PASSWORD_DEFAULT)); 
     $process->bindValue(':activationCode', $activationCode); 
     $process->bindValue(':filename', $filename); 
     $process->bindValue(':filepath', $filepath); 
     $process->bindValue(':filetype', $filetype); 
     $process->execute(); 
     $code = 'https://gotsocial.co.uk/gotsocial/active.php?activecode=' . $activationCode . '. 
      '; 
     $to = $post['email']; 
     $subject = 'GOT Social'; 
     $from = "[email protected]"; 
     $result = mail($to, $subject, $code, "From: $from"); 
    } 
    catch(Exception $e) 
    { 
     $errors[] = ["name" => "username", "error" => "Username may already be taken"]; 
    } 
    catch(Exception $e) 
    { 
     $errors[] = ["name" => "email", "error" => "Email may already be registered"]; 
    } 
    finally 
    { 
     header("refresh:10; url=index.php"); 
    }  

Answer 1

不，你不能有相同的catch(Exception $e)两次。你有，如果你需要有不同的抓否则必须将它们合并到一个

try 
    { 
     $db = new Database; 
     $success = ["message" => "Please check your Email address to activate your account"]; 
     $process = $db->prepare('INSERT INTO users (username, email, password, profileImg, profileImgPath, profileImgType, accountStatus, verified, joined) 
     VALUES 
     (:username, :email, :password, :filename, :filepath, :filetype, :activationCode, 0, NOW())'); 
     $process->bindValue(':username', $username); 
     $process->bindValue(':email', $email); 
     $process->bindValue(':password', password_hash($post['password'], PASSWORD_DEFAULT)); 
     $process->bindValue(':activationCode', $activationCode); 
     $process->bindValue(':filename', $filename); 
     $process->bindValue(':filepath', $filepath); 
     $process->bindValue(':filetype', $filetype); 
     $process->execute(); 
     $code = 'https://gotsocial.co.uk/gotsocial/active.php?activecode=' . $activationCode . '. 
      '; 
     $to = $post['email']; 
     $subject = 'GOT Social'; 
     $from = "[email protected]"; 
     $result = mail($to, $subject, $code, "From: $from"); 
    } 
    catch(Exception $e) 
    { 
     $errors[] = ["name" => "username", "error" => "Username may already be taken"]; 
     $errors[] = ["name" => "email", "error" => "Email may already be registered"]; 
    } 
    finally 
    { 
     header("refresh:10; url=index.php"); 
    }