PHP 8.1 adds support for a readonly modifier on class properties. A property that’s tagged in this way can only be set once. Trying to change a readonly property’s value after initialization will throw an error.
How to Use Readonly Properties in PHP 8.1
PHP 8.1 adds support for a readonly modifier on class properties. A property that’s tagged in this way can only be set once. Trying to change a readonly property’s value after initialization will throw an error.
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