Support TypedArrayObject in php

TypedArrayObject.php

<?php
//Tinker away!

Class YourClassName
{
    public string $name;
}

abstract class TypedArrayObject extends ArrayObject
{
    abstract public function className(): string;

    public function __construct(array $array = [])
    {
        if(!empty($array) && count(array_filter($array, function ($entry) {
                $className = $this->className();
                return !($entry instanceof $className);
            })) > 0) {
            throw new \InvalidArgumentException('Value must be an instance of '.(string) $this->className());
        }

        parent::__construct($array, \ArrayObject::ARRAY_AS_PROPS);
    }

    public function offsetSet($key, $value): void
    {
        if (!($value instanceof YourClassName)) {
            throw new \InvalidArgumentException('Value must be an instance of YourClassName');
        }
        parent::offsetSet($key, $value);
    }
}


Class ArrayOfYourClassName extends TypedArrayObject
{
    public function className(): string
    {
        return YourClassName::class;
    }
}

Class AnotherClassWhereImplementingArrayOfClassA
{
    public ArrayOfYourClassName $arrayOfClassA;

}


// Valid Case
$a = new YourClassName();
$a->name = "John Doe";
$b = new AnotherClassWhereImplementingArrayOfClassA();

// style one
$b->arrayOfClassA = new ArrayOfYourClassName([$a]);

// style two
$c = new ArrayOfYourClassName();
$c[] = $a;
$b->arrayOfClassA = $c;

var_dump($b->arrayOfClassA[0]->name);



// Invalid Case
$a = new YourClassName();
$a->name = "John Doe";
$b = new AnotherClassWhereImplementingArrayOfClassA();

// style one
$b->arrayOfClassA = new ArrayOfYourClassName([$a, "ok"]);

// style two
$c = new ArrayOfYourClassName();
$c[] = $a;
$c[] = "ok";
$b->arrayOfClassA = $c;

var_dump($b->arrayOfClassA[0]->name);