php custom exceptions

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

so that I can do something like

throw n开发者_高级运维ew 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)

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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

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

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