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<?php class MyClass { } class_alias('NS\MyClass', 'MyClass', false); $c = new MyClass(); var_dump($c);
Output for 8.1.34, 8.2.27 - 8.2.32, 8.3.0 - 8.3.32, 8.4.1 - 8.4.23, 8.5.0 - 8.5.8
Warning: Class "NS\MyClass" not found in /in/8gMuT on line 8 object(MyClass)#1 (0) { }

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50.7 ms | 775 KiB | 4 Q