Throwing an exception seems to defeat output buffering

[Leif Wickland <leifwickland@xxxxxxxxx>]

I would expect that if I turn on output buffering, echo something,
throw an exception,
and catch the exception, nothing will have been actually output.  That
doesn't seem
to be the case.  Throwing an exception seems to defeat output buffering.

In the following code, I would not expect to see the <h1>, but I do.



<?
try {
    ob_start();
    echo '<h1>You should not see this!</h1>';
    throw new Exception('<h2>This should be the first output.</h2>');
    exit( 'Contents: ' . ob_get_clean());
}
catch (Exception $ex) {
    exit('<h2>Exception:</h2>' . $ex->getMessage());
}



I'm exercising that code on PHP 5.2.4 and 5.2.8.

Does anybody know why throwing an exception seems to override
ob_start(), flushing the buffered output?  Is there a workaround?

Thank you,

Leif Wickland

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