Brent • 1/23/2026

Partial function application in PHP 8.6

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This article discusses the upcoming partial function application (PFA) feature in PHP 8.6, explaining how it builds upon first-class callables. It details the use of placeholder arguments to create new closures, demonstrates practical examples with functions like str_replace, and highlights how PFA improves code readability, especially when used with the pipe operator introduced in PHP 8.5.

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#functional programming #closures #php
Partial function application in PHP 8.6

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