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<?php function foo($aaa):?object { return '1aaa'; } var_dump(foo(123));
Output for git.master, git.master_jit, rfc.property-hooks
Fatal error: Uncaught TypeError: foo(): Return value must be of type ?object, string returned in /in/m6HbH:3 Stack trace: #0 /in/m6HbH(6): foo(123) #1 {main} thrown in /in/m6HbH on line 3
Process exited with code 255.

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