<?php class Foo { public function __construct(public readonly string $name) {} } class FancyArray { public function __construct(public readonly array $array = []) {} public function addElement(mixed $element): self { if (false === $element instanceof Foo) { throw new Exception("GOVNYAK!!!"); } return new self(array_merge($this->array, [$element])); } public function removeElementByIndex(mixed $index): self { return new self(array_splice(...[$this->array, $index, 1])); } } $array = new FancyArray([new Foo('a'), new Foo('b')]); $modifiedArray = $array->removeElementByIndex(1) ->addElement(new Foo('c')) ->addElement(new Foo('d')); var_dump($array); var_dump($modifiedArray);
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Value for `_results` contains invalid data `array`