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Home>IT Tests>Questions>Is this function signature valid? ```php <?php interface Demo { public function bar(): ?mixed; } ```

Question from the PHP8 test

Is this function signature valid? ```php <?php interface Demo { public function bar(): ?mixed; } ```

Medium

Is this function signature valid?

<?php

interface Demo
{
    public function bar(): ?mixed;
}
Author: W3D TeamStatus: PublishedQuestion passed 1186 times
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