Bug #80705 [Opn->Csd]: If you unset a class property, the __get remembers the original type.

Edit report at https://bugs.php.net/bug.php?id=80705&edit=1 ID: 80705 Updated by: nikic@php.net Reported by: vali dot dr at gmail dot com Summary: If you unset a class property, the __get remembers the original type. -Status: Open +Status: Closed Type: Bug Package: Scripting Engine problem Operating System: Linux PHP Version: 8.0.1 -Assigned To: +Assigned To: nikic Block user comment: N Private report: N New Comment: This is not a bug. By design, it is impossible to bypass property types in *any* way, including via __get. This is also specified at https://wiki.php.net/rfc/typed_properties_v2#overloaded_properties. Previous Comments: ------------------------------------------------------------------------ [2021-02-03 19:31:40] vali dot dr at gmail dot com Description: ------------ If you unset a property on a class, the __get magic method gets called (good), but it's return must match the original, now unset, property type. (bug?) There should be a way to fully remove that property, either by reflection or unset (including the return time) Test script: --------------- <?php declare(strict_types=1); class Sample { public int $foo = 123; # Start as in INT public function __construct() { unset($this->foo); # Remove the property } public function __get(string $name) { # Gets called, since foo dies not exist. echo "__GET\n"; # Validate that it's called return "string"; # Cannot return string since foo was an int... } } $test = new Sample(); echo $test->foo; # Throws error, since __get returns a string instead of an int Expected result: ---------------- __GET string Actual result: -------------- __GET PHP Fatal error: Uncaught TypeError: Cannot assign string to property Sample::$foo of type int in ... .php:18 Stack trace: #0 {main} thrown in ... ------------------------------------------------------------------------ -- Edit this bug report at https://bugs.php.net/bug.php?id=80705&edit=1