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<?php spl_autoload_register('var_dump'); class_alias('Foo', '*'); $a = '*'; eval('class Foo{}'); var_dump(new Foo()); var_dump(new $a);
Output for git.master, git.master_jit, rfc.property-hooks
string(3) "Foo" Warning: Class "Foo" not found in /in/rJqYR on line 5 object(Foo)#1 (0) { } Fatal error: Uncaught Error: Class "*" not found in /in/rJqYR:12 Stack trace: #0 {main} thrown in /in/rJqYR on line 12
Process exited with code 255.

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