On Sat, Aug 20, 2011 at 1:23 AM, Simon J Welsh <simon@xxxxxxxxxxx> wrote:
> On 20/08/2011, at 4:51 PM, Andreas wrote:
>
> > Hi,
> > I wrote stuff with file_put_contents() in a try{} catch{} and it worked.
> >
> > Then I'd like to check what happens when some error occurs so I
> writeprotected the targetfile.
> > Instead of getting my own message by the catch{} block I got a standard
> warning in the browser.
> >
> > Can't I catch those warnings, too?
> > And why does this function rise a warning when it can't acomplish it's
> task?
> >
> >
> > Samplecode:
> > try {
> > $msg = date ("d.m.Y H:i:s") . 'This should be stored in the
> file.';
> > file_put_contents( '/tmp/exceptions.txt', $msg . "\n",
> FILE_APPEND);
> > }
> > catch ( Exception $e ) {
> > $msg = "Exception " . $e->getCode() . " / " . $e->getMessage();
> > echo "<p>$msg</p>";
> > }
>
> file_put_contents() doesn't throw exceptions. As the note on the exception
> documentation says: "Internal PHP functions mainly use Error reporting, only
> modern Object oriented extensions use exceptions."
>
> If you look at the documentation for its return value (
> http://php.net/file_put_contents), you'll see that false is returned on
> failure.
>
> In this case, a warning makes more sense than throwing an exception anyway.
> A warning can be ignored, either by changing the error_reporting level or
> using the error control operator, whereas an exception must be dealt with or
> execution halts.
> ---
> Simon Welsh
> Admin of http://simon.geek.nz/
>
>
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> PHP General Mailing List (http://www.php.net/)
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>
>
Simon explains the rationale and heritage well.
If, however, you still wish to catch errors as exceptions, you can do so
with code like that below:
function error_handler($errno, $errstr, $errfile, $errline)
{
// must take into account error suppressor (@) and not do anything with them
(they equal 0)
// http://framework.zend.com/issues/browse/ZF-3829
// check against current error_reporting bitmasks
if (!(\error_reporting() & $errno)) {
return true;
} else {
$error_msg = "<dl><dt>Error Type (see
http://www.php.net/manual/en/errorfunc.constants.php):</dt><dd>$errno</dd><dt>Error
Message:</dt><dd>$errstr</dd><dt>File:</dt><dd>$errfile</dd><dt>Line:</dt><dd>$errline</dd></dl>";
throw new \Exception($error_msg);
}
}
set_error_handler('error_handler');
I just pulled some quick code from my web framework.
Adam
--
Nephtali: A simple, flexible, fast, and security-focused PHP framework
http://nephtaliproject.com
