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<?php declare(strict_types=1); class TestClass { public int $a; } $test = new TestClass(); $string = 'foo'; $test->int = &$string; var_dump($test->int); $test->int = []; var_dump($test->int);
Output for git.master, git.master_jit, rfc.property-hooks
Deprecated: Creation of dynamic property TestClass::$int is deprecated in /in/F6pnT on line 10 string(3) "foo" array(0) { }

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