php custom exceptions

问题

I was wondering how would one go about writing custom exception handlers.

so that I can do something like

throw new dbException($sql, $message);

and have it output

There was an error in your query Message: {$message here}
Query: {$sql here}
Line: {line exception was thrown on}
File: {file exception was thrown from}

but I also want to to catch eg syntax errors and parse errors (if possible)

回答1:

Well, you can extend the Exception class however you like. For custom exceptions, you might want to check out the post:

• PHP 5 OOP: Delegation and Custom Exceptions

You should also find this thread useful:

• Custom Exception Messages: Best practices

回答2:

Unless I am misunderstanding your question, you should be able to extend PHP's Exception class.

回答3:

Why don't use just write your own exception class derived from the standard base exception? See extending exceptions manual.

来源：https://stackoverflow.com/questions/5008965/php-custom-exceptions