Bug #72081 [NEW]: __get called before __isset
From: jarnix at jarnix dot com
Operating system: linux
PHP version: 5.6.20
Package: PHP Language Specification
Bug Type: Bug
Bug description:__get called before __isset
Description:
------------
I have an object when I override __get and __isset. I try to use __isset
but it seems that the __get is called before __isset. It's not the same
thing with arrays (I can do
isset($someArray['existingParentKey']['notExistingChildKey']) or
isset($someArray['notExistingParentKey']['notExistingChildKey']) without
problem.
I added multiple examples and comments to show it.
Maybe it's the expected behaviour. The __get should try __iset before
trying to get the value, but it doesn't seem logical.
It might be a duplicate of #72056 (__get is called for testing if
chained property is set)
Test script:
---------------
<?php
class Config
{
protected static $data;
public static function init() {
self::$data = new \StdClass();
self::$data->parent = new \StdClass();
}
public function __get($key) {
return self::$data->$key;
}
public function __isset($key) {
return(isset(self::$data->$key));
}
}
$config = new Config();
// prints "is set", as expected
if(isset($config->parent)) {
echo 'is set' . PHP_EOL;
}
else {
echo 'not set' . PHP_EOL;
}
// should print "not set" but throws an exception before
if(isset($config->parent->notChild)) {
echo 'isset' . PHP_EOL;
}
else {
echo 'not set' . PHP_EOL;
}
// prints "not set"
if(isset($config->notParent)) {
echo 'is set' . PHP_EOL;
}
else {
echo 'not set' . PHP_EOL;
}
// should write "not set" but throws an exception before
if(isset($config->notParent->test)) {
echo 'is set' . PHP_EOL;
}
else {
echo 'not set' . PHP_EOL;
}
Expected result:
----------------
The __isset should be called recursively before trying to __get the
child element.
Actual result:
--------------
An exception is thrown, making the __isset useless.
--
Edit bug report at https://bugs.php.net/bug.php?id=72081&edit=1
--
Try a snapshot (PHP 5.4): https://bugs.php.net/fix.php?id=72081&r=trysnapshot54
Try a snapshot (PHP 5.5): https://bugs.php.net/fix.php?id=72081&r=trysnapshot55
Try a snapshot (trunk): https://bugs.php.net/fix.php?id=72081&r=trysnapshottrunk
Fixed in SVN: https://bugs.php.net/fix.php?id=72081&r=fixed
Fixed in release: https://bugs.php.net/fix.php?id=72081&r=alreadyfixed
Need backtrace: https://bugs.php.net/fix.php?id=72081&r=needtrace
Need Reproduce Script: https://bugs.php.net/fix.php?id=72081&r=needscript
Try newer version: https://bugs.php.net/fix.php?id=72081&r=oldversion
Not developer issue: https://bugs.php.net/fix.php?id=72081&r=support
Expected behavior: https://bugs.php.net/fix.php?id=72081&r=notwrong
Not enough info: https://bugs.php.net/fix.php?id=72081&r=notenoughinfo
Submitted twice: https://bugs.php.net/fix.php?id=72081&r=submittedtwice
register_globals: https://bugs.php.net/fix.php?id=72081&r=globals
PHP 4 support discontinued: https://bugs.php.net/fix.php?id=72081&r=php4
Daylight Savings: https://bugs.php.net/fix.php?id=72081&r=dst
IIS Stability: https://bugs.php.net/fix.php?id=72081&r=isapi
Install GNU Sed: https://bugs.php.net/fix.php?id=72081&r=gnused
Floating point limitations: https://bugs.php.net/fix.php?id=72081&r=float
No Zend Extensions: https://bugs.php.net/fix.php?id=72081&r=nozend
MySQL Configuration Error: https://bugs.php.net/fix.php?id=72081&r=mysqlcfg
Thread (1 message)
- jarnix at jarnix dot com