Bug #72223 [NEW]: regression with _isset, __get call precedence

From: koubel at seznam dot cz Operating system: Linux PHP version: 7.0.6 Package: *General Issues Bug Type: Bug Bug description:regression with _isset, __get call precedence Description: ------------ When we wanted migrate from PHP 5 to PHP 7 (7.0.6), we hitted BC break with __isset and __get call precedence. It stops migration, because we have a tons of lines with isset($instance->magicProperty["index")) calls. There is also no mention about this break in documentation. P.S. According https://3v4l.org/ka9na, it seems that something changed in PHP 7.0.6, 7.0.5 works fine. Test script: --------------- class IsGet { private $arr = [1 => 1, 2 => 2, 3 => 3]; function &__get($property) { echo "__get\n"; return $this->arr; } function __isset($property) { echo "__isset\n"; return false; } } $instance = new IsGet(); var_dump(isset($instance->arr[1])); Expected result: ---------------- __get bool(true) Actual result: -------------- __isset bool(false) -- Edit bug report at https://bugs.php.net/bug.php?id=72223&edit=1 -- Try a snapshot (PHP 5.4): https://bugs.php.net/fix.php?id=72223&r=trysnapshot54 Try a snapshot (PHP 5.5): https://bugs.php.net/fix.php?id=72223&r=trysnapshot55 Try a snapshot (trunk): https://bugs.php.net/fix.php?id=72223&r=trysnapshottrunk Fixed in SVN: https://bugs.php.net/fix.php?id=72223&r=fixed Fixed in release: https://bugs.php.net/fix.php?id=72223&r=alreadyfixed Need backtrace: https://bugs.php.net/fix.php?id=72223&r=needtrace Need Reproduce Script: https://bugs.php.net/fix.php?id=72223&r=needscript Try newer version: https://bugs.php.net/fix.php?id=72223&r=oldversion Not developer issue: https://bugs.php.net/fix.php?id=72223&r=support Expected behavior: https://bugs.php.net/fix.php?id=72223&r=notwrong Not enough info: https://bugs.php.net/fix.php?id=72223&r=notenoughinfo Submitted twice: https://bugs.php.net/fix.php?id=72223&r=submittedtwice register_globals: https://bugs.php.net/fix.php?id=72223&r=globals PHP 4 support discontinued: https://bugs.php.net/fix.php?id=72223&r=php4 Daylight Savings: https://bugs.php.net/fix.php?id=72223&r=dst IIS Stability: https://bugs.php.net/fix.php?id=72223&r=isapi Install GNU Sed: https://bugs.php.net/fix.php?id=72223&r=gnused Floating point limitations: https://bugs.php.net/fix.php?id=72223&r=float No Zend Extensions: https://bugs.php.net/fix.php?id=72223&r=nozend MySQL Configuration Error: https://bugs.php.net/fix.php?id=72223&r=mysqlcfg