PHP 8.2 introduces read-only courses

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A serious replace to the stalwart scripting language for internet improvement, PHP 8.2 has arrived with efficiency, syntax, and kind security enhancements together with new capabilities akin to read-only courses and stand-alone sorts.

PHP 8.2 was printed December 8 and will be accessed from

Help for read-only courses in PHP 8.2 signifies that a category marked with the readonly modifier will mark all occasion properties of the category as read-only and forestall the creation of dynamic properties. Marking readonly courses with the AllowDynamicProperties attribute triggers a compile error.

The addition of null, false, and true as stand-alone sorts in PHP 8.2 is described as a “programming enhancement.” The null sort corresponds to PHP’s unit sort (the sort that holds a single worth) whereas false and true are literal forms of sort bool. These modifications promote sort system completeness and serve quite a lot of edge instances.

In different enhancements in PHP 8.2:

  • Disjunctive regular kind (DNF) sorts allow the mix of union and intersection sorts, following a strict rule that claims when combining union and intersection sorts, intersection sorts should be grouped with brackets.
  • A “random” extension supplies an object-oriented API to random quantity technology.
  • The creation of dynamic properties has been deprecated, to assist keep away from errors and typos, until the category opts in by utilizing the AllowDynamicProperties attribute; stdclass permits dynamic properties.
  • New courses, interfaces, and capabilities are featured, akin to a msqli_execute_query operate and a SensitiveParameter attribute.
  • Constants now will be outlined in traits.
  • The ${} string interpolation has been deprecated.

PHP 8.1, which featured new capabilities concerning enums, syntax, and read-only properties, arrived in November 2021. It was adopted by a number of level releases.

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