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Posted by comp.lang.php on 11/18/99 11:43
Read my comments below in **
David Haynes wrote:
> Oli Filth wrote:
> > comp.lang.php said the following on 27/03/2006 16:55:
> >> print_r("Before: "); print_r($_SESSION["${projectAcronym}_kounter"]);
> >> print_r("<P>");
> >> if (is_array($_POST) && @sizeof($_POST) > 0 && is_object($accepter)
> >> && @is_a($accepter, 'Accepter') && is_object($ap) && @is_a($ap,
> >> 'ActionPerformer') &&
> >> (!$accepter->isValid || !$ap->isSuccessful) &&
> >> (int)$_SESSION["${projectAcronym}_kounter"] >= 1
> >> ) {
> >> foreach ($_SESSION as $field) if (strpos($field, $projectAcronym)
> >> === 0) unset($_SESSION[$field]);
> >> $qs = '?sort=' . $_REQUEST['sort'] . '&willDesc=' .
> >> $_REQUEST['willDesc'] . '&willShowDetail=1&id=' . $_REQUEST['id'];
> >> $errorMsg = "<p><font color=\"#cc0000\"><b>Application display
> >> restarted due to too many errors, all values reset</b></font></p>";
> >> $qs .= '&errorMsg=' . urlencode($errorMsg);
> >> header('Location: ' . $_SERVER['PHP_SELF'] . $qs);
> >> } elseif (is_array($_POST) && @sizeof($_POST) > 0 &&
> >> is_object($accepter) && @is_a($accepter, 'Accepter') && is_object($ap)
> >> && @is_a($ap, 'ActionPerformer') &&
> >> (!$accepter->isValid || !$ap->isSuccessful) &&
> >> (int)$_SESSION["${projectAcronym}_kounter"] >= 0
> >> ) {
> >> if ((int)($_SESSION["${projectAcronym}_kounter"]) > 0)
> >> (int)$_SESSION["${projectAcronym}_kounter"]++; else
> >> $_SESSION["${projectAcronym}_kounter"] = 1;
> >> }
> >> print_r("After: ");
> >> print_r($_SESSION["${projectAcronym}_kounter"]); print_r("<P>");
> >> //--END OF "Three Strikes You're Out"
> >
> > That's some of the most unreadable code I've ever seen.
> >
> >
> It's still obtuse if you do reformat it...
> My comments with '--' prefix.
>
> print_r("Before: ");
> print_r($_SESSION["${projectAcronym}_kounter"]);
> print_r("<P>");
>
> if(
> is_array($_POST)
> && @sizeof($_POST) > 0
> && is_object($accepter)
> && @is_a($accepter, 'Accepter')
> && is_object($ap)
> && @is_a($ap, 'ActionPerformer')
> && ( ! $accepter->isValid || !$ap->isSuccessful )
> -- up to here the two clauses of the if are identical
** How? I don't see how they're identical in any way, they're
completely distinctive
> && (int)$_SESSION["${projectAcronym}_kounter"] >= 1 ) {
> -- if we get here, i.e. kounter > 0, then we never increment it
> -- net result: the kounter goes from 0 in the second clause
> -- and stays at one here - which is the observed result.
> -- Also, the casts to int are not needed
** I don't follow you here. Sorry, elaborate more, please. And I've
had no luck without casts using $_SESSION objects
> foreach( $_SESSION as $field)
> if( strpos($field, $projectAcronym) === 0 )
> -- why ===? checking the return type of strpos for integer?
** I am checking to see if the $_SESSION key starts with
"$projectAcronym", isn't that what strpos() does?
> unset($_SESSION[$field]);
>
> $qs = '?sort='.$_REQUEST['sort']
> .'&willDesc='.$_REQUEST['willDesc']
> .'&willShowDetail=1'
> .'&id='.$_REQUEST['id'];
> $errorMsg = "<p><font color=\"#cc0000\">"
> ."<b>Application display restarted due to too many errors, all values
> reset</b>"
> ."</font></p>";
> $qs .= '&errorMsg='.urlencode($errorMsg);
> header('Location: '.$_SERVER['PHP_SELF'].$qs);
> } elseif(
> is_array($_POST)
> && @sizeof($_POST) > 0
> && is_object($accepter)
> && @is_a($accepter, 'Accepter')
> && is_object($ap)
> && @is_a($ap, 'ActionPerformer')
> && ( ! $accepter->isValid || !$ap->isSuccessful )
> && (int)$_SESSION["${projectAcronym}_kounter"] >= 0 ) {
> -- the previous if clause will trap on kounter >= 1, so this test
> -- should be == 0 if kounter has any chance of going negative
> -- otherwise it is useless.
> if ((int)($_SESSION["${projectAcronym}_kounter"]) > 0)
> (int)$_SESSION["${projectAcronym}_kounter"]++;
> else
> $_SESSION["${projectAcronym}_kounter"] = 1;
> -- so we know that kounter is always zero, to only this line will
> -- be used, moving kounter to 1.
> }
** No it should not always be 0, it might be 0 but it could be 1, 2,
.... N. It's supposed to be at the point where you made a mistake and
it auto--increments.
> print_r("After: ");
> print_r($_SESSION["${projectAcronym}_kounter"]);
> print_r("<P>");
> //--END OF "Three Strikes You're Out"
>
> -david-
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