Web Reference: The readonly class syntax is new in PHP 8.2, and classes that are declared readonly result in a Parse error in older PHP versions. As a stop-gap for readonly classes, consider declaring all properties as readonly, which is supported since PHP 8.1. Apr 3, 2025 Β· PHP 8.1 added support for readonly properties via PHP RFC: Readonly properties 2.0. However, it's still not easy to declare (quasi-)immutable classes, especially if they contain many properties. Therefore, this RFC proposes to add support for readonly classes. Dec 6, 2021 Β· readonly properties allow you to create immutable objects, or at the very least immutable properties (since 8.2 we also have readonly for classes, which allow creating immutable objects without having to apply the keyword to each of the class properties).
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Readonly Classes In Php 8 Net Worth 2026: Salary, Income & Wealth Net Worth & Biography

Estimated Worth: $10M - $24M
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This section covers known assets, real estate holdings, luxury vehicles, and investment portfolios. Data is compiled from public records, financial disclosures, and verified media reports.
Last Updated: April 10, 2026
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