PHP 8 Support

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Merge pull request jeremykenedy#16 from jeremykenedy/analysis-YjaZrj

Apply fixes from StyleCI

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Merge pull request jeremykenedy#14 from jeremykenedy/psr4

Psr4

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Merge pull request jeremykenedy#9 from jeremykenedy/analysis-5Zk1yx

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Merge pull request jeremykenedy#6 from rich1888/iOS-input-bug

iOS fix for input changing