Doc #79256 [NEW]: generator->next() not behaving as documented.
From: selanefa at outlook dot com
Operating system: Ubuntu 18.04.3
PHP version: 7.2.27
Package: Unknown/Other Function
Bug Type: Documentation Problem
Bug description:generator->next() not behaving as documented.
Description:
------------
---
From manual page: https://php.net/generator.next
---
The documentation states:
Calling Generator::next() is equivalent to calling Generator::send()
with NULL as argument.
However, calling Generator::send(null) moves the pointer and returns the
current value, while Generator::next() only moves the pointer and
returns nothing.
Test script:
---------------
function generateCountdown(int $start) {
while ($start>=0) {
yield $start--;
}
}
$gen = generateCountdown(3);
echo $gen->current().PHP_EOL;
echo $gen->send(null).PHP_EOL;
echo $gen->send(null).PHP_EOL;
$gen->next();
echo $gen->current().PHP_EOL;
Expected result:
----------------
3
2
1
0
--
Edit bug report at https://bugs.php.net/bug.php?id=79256&edit=1
--
Fix committed: https://bugs.php.net/fix.php?id=79256&r=fixed
Fixed in release: https://bugs.php.net/fix.php?id=79256&r=alreadyfixed
Need backtrace: https://bugs.php.net/fix.php?id=79256&r=needtrace
Need Reproduce Script: https://bugs.php.net/fix.php?id=79256&r=needscript
Try newer version: https://bugs.php.net/fix.php?id=79256&r=oldversion
Not developer issue: https://bugs.php.net/fix.php?id=79256&r=support
Expected behavior: https://bugs.php.net/fix.php?id=79256&r=notwrong
Not enough info: https://bugs.php.net/fix.php?id=79256&r=notenoughinfo
Submitted twice: https://bugs.php.net/fix.php?id=79256&r=submittedtwice
register_globals: https://bugs.php.net/fix.php?id=79256&r=globals
PHP version support discontinued: https://bugs.php.net/fix.php?id=79256&r=phptooold
Daylight Savings: https://bugs.php.net/fix.php?id=79256&r=dst
IIS Stability: https://bugs.php.net/fix.php?id=79256&r=isapi
Install GNU Sed: https://bugs.php.net/fix.php?id=79256&r=gnused
Floating point limitations: https://bugs.php.net/fix.php?id=79256&r=float
No Zend Extensions: https://bugs.php.net/fix.php?id=79256&r=nozend
MySQL Configuration Error: https://bugs.php.net/fix.php?id=79256&r=mysqlcfg
Thread (7 messages)
- selanefa at outlook dot com