From: flex at city dot ee
Operating system: Linux
PHP version: 5.1.4
PHP Bug Type: Variables related
Bug description: pass by reference with assignment
Description:
------------
When passing in variable which gets assigned
in function call, PHP wrongly thinks it got something
other than variable:
function test(&$a) { $a = 2; } // take $a as reference
test($m = 5); // should mean assign 5 to $m and _then_ pass in variable
$m
Instead it looks like php sends scalar 5 to function (and throws E_STRICT
error), which is plainly wrong. Or is the documentation wrong about
operator precedence?
Really: <?php $m=1;test($m); ?> should mean exactly same as <?php <?php
test($m=1); ?>. Currently it does not and IMHO this is very
counter-productive to PHP's KISS principle. Especially that last S.
By the way I know there are tons of similar bug reports marked Bogus. But
please think about this report once more.
Also you should consider the fact that the 'expected result' shown in this
bug report is not hand-written but obtained from PHP 4.4.2 - and this only
means serious BC problem.
Reproduce code:
---------------
<?php
function test(&$a) { $a = 2; }
$m = 1;
test($m);
var_dump($m);
test($m = 1);
var_dump($m);
?>
Expected result:
----------------
int(2)
int(2)
Actual result:
--------------
int(2)
int(1)
--
Edit bug report at http://bugs.php.net/?id=38013&edit=1
--
Try a CVS snapshot (PHP 4.4):
http://bugs.php.net/fix.php?id=38013&r=trysnapshot44
Try a CVS snapshot (PHP 5.2):
http://bugs.php.net/fix.php?id=38013&r=trysnapshot52
Try a CVS snapshot (PHP 6.0):
http://bugs.php.net/fix.php?id=38013&r=trysnapshot60
Fixed in CVS: http://bugs.php.net/fix.php?id=38013&r=fixedcvs
Fixed in release:
http://bugs.php.net/fix.php?id=38013&r=alreadyfixed
Need backtrace: http://bugs.php.net/fix.php?id=38013&r=needtrace
Need Reproduce Script: http://bugs.php.net/fix.php?id=38013&r=needscript
Try newer version: http://bugs.php.net/fix.php?id=38013&r=oldversion
Not developer issue: http://bugs.php.net/fix.php?id=38013&r=support
Expected behavior: http://bugs.php.net/fix.php?id=38013&r=notwrong
Not enough info:
http://bugs.php.net/fix.php?id=38013&r=notenoughinfo
Submitted twice:
http://bugs.php.net/fix.php?id=38013&r=submittedtwice
register_globals: http://bugs.php.net/fix.php?id=38013&r=globals
PHP 3 support discontinued: http://bugs.php.net/fix.php?id=38013&r=php3
Daylight Savings: http://bugs.php.net/fix.php?id=38013&r=dst
IIS Stability: http://bugs.php.net/fix.php?id=38013&r=isapi
Install GNU Sed: http://bugs.php.net/fix.php?id=38013&r=gnused
Floating point limitations: http://bugs.php.net/fix.php?id=38013&r=float
No Zend Extensions: http://bugs.php.net/fix.php?id=38013&r=nozend
MySQL Configuration Error: http://bugs.php.net/fix.php?id=38013&r=mysqlcfg
