[php-src] Issue #19036: empty() returns true for magic method __get() results

Issue: https://github.com/php/php-src/issues/19036 Author: hibipo-ro ### Description ## Description The empty() function returns true when called on a property accessed through the __get() magic method, even though the property contains a non-empty value. ## Expected Behavior empty($accessor->name) should return false because the property contains the string "Tokyo". ## Actual Behavior empty($accessor->name) returns true, which is unexpected. ## Code to Reproduce ```php <?php class Accessor { public function __construct(public $target) {} public function __get($key) { return $this->target->$key; } } $school = new stdClass(); $school->name = "Tokyo"; $accessor = new Accessor($school); var_dump($accessor->name); // "Tokyo" var_dump(strcmp($accessor->name, $accessor->target->name)); // 0 var_dump($accessor->name === $accessor->target->name); // true var_dump(empty($accessor->name)); // true - WHY? var_dump(empty($accessor->target->name)); // false $name = $accessor->name; var_dump(empty($name)); // false ``` ## Tested on - PHP 8.1 - PHP 8.2 - PHP 8.3 ### PHP Version ```plain PHP 8.2.28 (cli) (built: May 21 2025 23:17:46) (NTS) Copyright (c) The PHP Group Zend Engine v4.2.28, Copyright (c) Zend Technologies with Xdebug v3.4.3, Copyright (c) 2002-2025, by Derick Rethans ``` ### Operating System _No response_