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Bug #23441 Session variables and ternary operator
Submitted: 2003-05-01 12:15 UTC Modified: 2003-05-01 12:22 UTC
From: jeremy at wdonline dot com Assigned:
Status: Not a bug Package: Session related
PHP Version: 4.3.1 OS: Windows XP
Private report: No CVE-ID: None
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From: jeremy at wdonline dot com
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 [2003-05-01 12:15 UTC] jeremy at wdonline dot com 
Through many frustrating hours, I think found a bug.  The current session documentation offers this example for setting session variables using the $_SESSION array:

if (!isset($_SESSION['count'])) {
    $_SESSION['count'] = 0;
} else {
    $_SESSION['count']++;
}


This example, of course, works.  However, it is common knowledge the the ternary operator can achieve the same results in one line:

$_SESSION['count'] = (!isset($_SESSION['count']))?0:$_SESSION['count']++;

However, this does not work.  The session variable always seems to not be set, as it always retains the value of 0 instead of being incremented.

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 [2003-05-01 12:21 UTC] helly@php.net 
the ternary operator is bork
 [2003-05-01 12:22 UTC] helly@php.net 
Thank you for taking the time to write to us, but this is not
a bug. Please double-check the documentation available at
http://www.php.net/manual/ and the instructions on how to report
a bug at http://bugs.php.net/how-to-report.php

but that is not your problem!

you do a = a++;
that equals: temp = a;a = a+1;a = temp;
 
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