When and why can `finally` be useful?

Question

PHP 5.5 has implemented finally to try-catch. My doubt is: when exactly try-catch-finally that might be more helpful than just I write

Answer 1

You might not catch the exception you're throwing, but you still want to run your finally statement before throwing an error (eg. always close a log file or a DB connection before fatally failing because you didn't catch the exception):

getMessage();
    fwrite($fHandle, 'Threw a RangeException: ' . $e->getMessage());
} finally {
    // Always make sure that we close the file before throwing an exception, even if we don't catch it

    echo 'Reached the finally block';
    fwrite($fHandle, 'Reached the finally block');
    fclose($fHandle);
}

Which would output:

Throwing exception..Reached the finally block
Fatal error: Uncaught exception 'BadFunctionCallException' in /tmp/execpad-dc59233db2b0/source-dc59233db2b0:6
Stack trace:
    #0 {main}
    thrown in /tmp/execpad-dc59233db2b0/source-dc59233db2b0 on line 6

DEMO (without the fopen as eval.in doesn't support it)