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Doc Bug #25356 ?: (ternary) - shold operate as in C, but does not
Submitted: 2003-09-02 06:30 UTC Modified: 2004-04-08 00:26 UTC
Votes:1
Avg. Score:3.0 ± 0.0
Reproduced:1 of 1 (100.0%)
Same Version:1 (100.0%)
Same OS:1 (100.0%)
From: matschek at gmx dot de Assigned:
Status: Closed Package: Documentation problem
PHP Version: Irrelevant OS: Irrelevant
Private report: No CVE-ID: None
View Developer Edit
 [2003-09-02 06:30 UTC] matschek at gmx dot de 
Description:
------------
The documentation says in the section Comparison Operators:

"Another conditional operator is the "?:" (or ternary) operator, which operates as in C and many other languages"

This is not true, because in C and other languages the ternary-operator is parsed/compiled from left to right, and therefore cases other results.

The included code returns "1" in C and JavaScript, for example, but "2" in PHP

Reproduce code:
---------------
$c1=true;
$c2=false;

echo $c1 ? 1 : $c2 ? 2 : 3;


Expected result:
----------------
1

Actual result:
--------------
2

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 [2003-09-02 08:24 UTC] sniper@php.net 
To get the correct result do this:

  echo $c1 ? 1 : ($c2 ? 2 : 3);

Isn't that much readable too? :)
Anyway, that note about ternary being same as in C is wrong.
 [2004-04-08 00:26 UTC] irchtml@php.net 
This bug has been fixed in the documentation's XML sources. Since the
online and downloadable versions of the documentation need some time
to get updated, we would like to ask you to be a bit patient.

Thank you for the report, and for helping us make our documentation better.

Removed note.
 
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