Bug #79614 [NEW]: Nested 'yield from' duplicate first element
From: ponomarev at gmail dot com
Operating system:
PHP version: 7.4.6
Package: *General Issues
Bug Type: Bug
Bug description:Nested 'yield from' duplicate first element
Description:
------------
See the example script.
First element yielded twice if iterate over a generator that `yield
from` another generator.
Test script:
---------------
https://3v4l.org/2ZQ8d
<?php
$arr = [1,2,3];
function a($x){
yield from $x;
}
foreach(a(a($arr)) as $x){
print_r($x);
}
Expected result:
----------------
123
Actual result:
--------------
1123
--
Edit bug report at https://bugs.php.net/bug.php?id=79614&edit=1
--
Fix committed: https://bugs.php.net/fix.php?id=79614&r=fixed
Fixed in release: https://bugs.php.net/fix.php?id=79614&r=alreadyfixed
Need backtrace: https://bugs.php.net/fix.php?id=79614&r=needtrace
Need Reproduce Script: https://bugs.php.net/fix.php?id=79614&r=needscript
Try newer version: https://bugs.php.net/fix.php?id=79614&r=oldversion
Not developer issue: https://bugs.php.net/fix.php?id=79614&r=support
Expected behavior: https://bugs.php.net/fix.php?id=79614&r=notwrong
Not enough info: https://bugs.php.net/fix.php?id=79614&r=notenoughinfo
Submitted twice: https://bugs.php.net/fix.php?id=79614&r=submittedtwice
register_globals: https://bugs.php.net/fix.php?id=79614&r=globals
PHP version support discontinued: https://bugs.php.net/fix.php?id=79614&r=phptooold
Daylight Savings: https://bugs.php.net/fix.php?id=79614&r=dst
IIS Stability: https://bugs.php.net/fix.php?id=79614&r=isapi
Install GNU Sed: https://bugs.php.net/fix.php?id=79614&r=gnused
Floating point limitations: https://bugs.php.net/fix.php?id=79614&r=float
No Zend Extensions: https://bugs.php.net/fix.php?id=79614&r=nozend
MySQL Configuration Error: https://bugs.php.net/fix.php?id=79614&r=mysqlcfg
Thread (7 messages)
- ponomarev at gmail dot com