Bug #77985 [NEW]: Wrong resolution of "Late Static Binding" after static::method()
| From: | dev at mabe dot berlin | Date: | Tue, 07 May 2019 19:31:40 +0000 |
| Subject: | Bug #77985 [NEW]: Wrong resolution of "Late Static Binding" after static::method() | ||
| Groups: | php.bugs | ||
| Request: | Send a blank email to php-bugs+get-220754@lists.php.net to get a copy of this message | ||
From: dev at mabe dot berlin
Operating system: Linux
PHP version: Irrelevant
Package: Class/Object related
Bug Type: Bug
Bug description:Wrong resolution of "Late Static Binding" after static::method()
Description:
------------
Wrong resolution of the referenced class that was initially called (Late
Static Binding) if it gets called using static::method().
Both, static::class as well as get_called_class() result into the wrong
class name.
Simplified explanation from test script:
1. calling "B:call()"
2. -> calling "self::getStaticClass()" defined in "A::call"
This should get resolved to "A::getStaticClass()"
3. -> returning "static::class"
This should get resolved to "A:class" as it was called by
"A::getStaticClass()"
Test script:
---------------
<?php
class A {
static function getStaticClass(){ return static::class; }
static function getCalledClass() { return get_called_class(); }
static function call(){
$self = self::class;
echo $self;
echo $self::getStaticClass();
echo $self::getCalledClass();
echo self::getStaticClass();
echo self::getCalledClass();
echo PHP_EOL;
$static = static::class;
echo $static;
echo $static::getStaticClass();
echo $static::getCalledClass();
echo static::getStaticClass();
echo static::getCalledClass();
echo PHP_EOL;
$calledClass = get_called_class();
echo $calledClass;
echo $calledClass::getStaticClass();
echo $calledClass::getCalledClass();
echo PHP_EOL;
}
}
class B extends A {}
echo 'A:call()', PHP_EOL;
A::call();
echo 'B:call()', PHP_EOL;
B::call();
Expected result:
----------------
A:call()
AAAAA
AAAAA
AAA
B:call()
AAAAA
BBBBB
BBB
Actual result:
--------------
A:call()
AAAAA
AAAAA
AAA
B:call()
AAABB <- The last two cases should resolve to A instead of B
BBBBB
BBB
--
Edit bug report at https://bugs.php.net/bug.php?id=77985&edit=1
--
Try a snapshot (PHP 5.4): https://bugs.php.net/fix.php?id=77985&r=trysnapshot54
Try a snapshot (PHP 5.5): https://bugs.php.net/fix.php?id=77985&r=trysnapshot55
Try a snapshot (trunk): https://bugs.php.net/fix.php?id=77985&r=trysnapshottrunk
Fixed in SVN: https://bugs.php.net/fix.php?id=77985&r=fixed
Fixed in release: https://bugs.php.net/fix.php?id=77985&r=alreadyfixed
Need backtrace: https://bugs.php.net/fix.php?id=77985&r=needtrace
Need Reproduce Script: https://bugs.php.net/fix.php?id=77985&r=needscript
Try newer version: https://bugs.php.net/fix.php?id=77985&r=oldversion
Not developer issue: https://bugs.php.net/fix.php?id=77985&r=support
Expected behavior: https://bugs.php.net/fix.php?id=77985&r=notwrong
Not enough info: https://bugs.php.net/fix.php?id=77985&r=notenoughinfo
Submitted twice: https://bugs.php.net/fix.php?id=77985&r=submittedtwice
register_globals: https://bugs.php.net/fix.php?id=77985&r=globals
PHP 4 support discontinued: https://bugs.php.net/fix.php?id=77985&r=php4
Daylight Savings: https://bugs.php.net/fix.php?id=77985&r=dst
IIS Stability: https://bugs.php.net/fix.php?id=77985&r=isapi
Install GNU Sed: https://bugs.php.net/fix.php?id=77985&r=gnused
Floating point limitations: https://bugs.php.net/fix.php?id=77985&r=float
No Zend Extensions: https://bugs.php.net/fix.php?id=77985&r=nozend
MySQL Configuration Error: https://bugs.php.net/fix.php?id=77985&r=mysqlcfg