Bug #72056 [NEW]: __get is called for testing if chained property is set

From: koubel at seznam dot cz Operating system: Linux PHP version: 7.0.5 Package: *General Issues Bug Type: Bug Bug description:__get is called for testing if chained property is set Description: ------------ For classes with implemented __get and __isset, __get is automatically called when testing only if chained overloaded properties are set, despite the first property in chain doesn't exist. There is no reason to call __get anymore. It's there from the beginning of __get/__isset, So maybe it's feature, but undocumented? Test script: --------------- class Xstd {} class XOverloading { function __isset($name) { return FALSE; } function __get($name) { trigger_error('Error', E_USER_WARNING); } } $obj = new Xstd(); var_dump(isset($obj->prop1->prop2)); $obj = new XOverloading(); var_dump(isset($obj->prop1->prop2)); Expected result: ---------------- bool(false) bool(false) Actual result: -------------- bool(false) Warning: Error in .... on line 13 bool(false) -- Edit bug report at https://bugs.php.net/bug.php?id=72056&edit=1 -- Try a snapshot (PHP 5.4): https://bugs.php.net/fix.php?id=72056&r=trysnapshot54 Try a snapshot (PHP 5.5): https://bugs.php.net/fix.php?id=72056&r=trysnapshot55 Try a snapshot (trunk): https://bugs.php.net/fix.php?id=72056&r=trysnapshottrunk Fixed in SVN: https://bugs.php.net/fix.php?id=72056&r=fixed Fixed in release: https://bugs.php.net/fix.php?id=72056&r=alreadyfixed Need backtrace: https://bugs.php.net/fix.php?id=72056&r=needtrace Need Reproduce Script: https://bugs.php.net/fix.php?id=72056&r=needscript Try newer version: https://bugs.php.net/fix.php?id=72056&r=oldversion Not developer issue: https://bugs.php.net/fix.php?id=72056&r=support Expected behavior: https://bugs.php.net/fix.php?id=72056&r=notwrong Not enough info: https://bugs.php.net/fix.php?id=72056&r=notenoughinfo Submitted twice: https://bugs.php.net/fix.php?id=72056&r=submittedtwice register_globals: https://bugs.php.net/fix.php?id=72056&r=globals PHP 4 support discontinued: https://bugs.php.net/fix.php?id=72056&r=php4 Daylight Savings: https://bugs.php.net/fix.php?id=72056&r=dst IIS Stability: https://bugs.php.net/fix.php?id=72056&r=isapi Install GNU Sed: https://bugs.php.net/fix.php?id=72056&r=gnused Floating point limitations: https://bugs.php.net/fix.php?id=72056&r=float No Zend Extensions: https://bugs.php.net/fix.php?id=72056&r=nozend MySQL Configuration Error: https://bugs.php.net/fix.php?id=72056&r=mysqlcfg