I'm confused about the rationale behind: |> fn($x) => array_column($x, 'tags') W... | Hacker News

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		mg 5 months ago \| parent \| context \| favorite \| on: PHP 8.5 adds pipe operator I'm confused about the rationale behind: `\|> fn($x) => array_column($x, 'tags')` Why is that inlined function necessary? Why not just `\|> array_column(..., 'tags')` ? I mean, I understand that it is because the way this operator was designed. But why?

rafark 5 months ago [–]

> |> array_column(..., 'tags')

This syntax is invalid. But it will be possible next year with the proposed partial function application rfc

array_column(?, 'tags')

https://wiki.php.net/rfc/partial_function_application_v2

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