Brent • 8/3/2025

Readonly or private(set)

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This technical article compares PHP's readonly properties (introduced in PHP 8.1) with private(set) asymmetric visibility (from PHP 8.4). It explains how readonly ensures a property is set only once, while private(set) allows public reading but restricts writing to within the class. The author discusses the practical implications for creating structured, typed data objects and reducing boilerplate code.

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#object oriented programming #php #Readonly Properties
Readonly or private(set)

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