From: jan at fb dot com
Operating system: Linux
PHP version: 5.5.0RC2
Package: *Programming Data Structures
Bug Type: Bug
Bug description:Wrong behavior of static variables in closure generators
Description:
------------
Each closure instance should have its own set of static variables. This
works perfectly with non-generator closures (replace yield by return array
in the test script), but not with generator closures (run the test script),
where static variables seem to behave like a normal local variables.
Test script:
---------------
<?php
function new_closure_gen() {
return function() {
static $foo = 0;
//return array(++$foo);
yield ++$foo;
};
}
$closure1 = new_closure_gen();
$closure2 = new_closure_gen();
$gen1 = $closure1();
$gen2 = $closure1();
$gen3 = $closure2();
foreach (array($gen1, $gen2, $gen3) as $gen) {
foreach ($gen as $val) {
print "$val\n";
}
}
Expected result:
----------------
1
2
1
Actual result:
--------------
1
1
1
--
Edit bug report at https://bugs.php.net/bug.php?id=64979&edit=1
--
Try a snapshot (PHP 5.4):
https://bugs.php.net/fix.php?id=64979&r=trysnapshot54
Try a snapshot (PHP 5.3):
https://bugs.php.net/fix.php?id=64979&r=trysnapshot53
Try a snapshot (trunk):
https://bugs.php.net/fix.php?id=64979&r=trysnapshottrunk
Fixed in SVN: https://bugs.php.net/fix.php?id=64979&r=fixed
Fixed in release: https://bugs.php.net/fix.php?id=64979&r=alreadyfixed
Need backtrace: https://bugs.php.net/fix.php?id=64979&r=needtrace
Need Reproduce Script: https://bugs.php.net/fix.php?id=64979&r=needscript
Try newer version: https://bugs.php.net/fix.php?id=64979&r=oldversion
Not developer issue: https://bugs.php.net/fix.php?id=64979&r=support
Expected behavior: https://bugs.php.net/fix.php?id=64979&r=notwrong
Not enough info:
https://bugs.php.net/fix.php?id=64979&r=notenoughinfo
Submitted twice:
https://bugs.php.net/fix.php?id=64979&r=submittedtwice
register_globals: https://bugs.php.net/fix.php?id=64979&r=globals
PHP 4 support discontinued: https://bugs.php.net/fix.php?id=64979&r=php4
Daylight Savings: https://bugs.php.net/fix.php?id=64979&r=dst
IIS Stability: https://bugs.php.net/fix.php?id=64979&r=isapi
Install GNU Sed: https://bugs.php.net/fix.php?id=64979&r=gnused
Floating point limitations: https://bugs.php.net/fix.php?id=64979&r=float
No Zend Extensions: https://bugs.php.net/fix.php?id=64979&r=nozend
MySQL Configuration Error: https://bugs.php.net/fix.php?id=64979&r=mysqlcfg
