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@ 2018-04-19T19:03:25Z

<?php

trait GenericList {
    
    public function __call($func, $argv)
    {
        echo "__call called \n";
        if (!is_callable($func) || substr($func, 0, 6) !== 'array_')
        {
            throw new \BadMethodCallException(__CLASS__.'->'.$func);
        }
        return call_user_func_array($func, array_merge(array($this->getArrayCopy()), $argv));
    }

    final public function offsetUnset($offset) {
        parent::offsetUnset($offset);
    }

    final public function sort($preserveKeys = false) {
        if($preserveKeys)
            parent::ksort();
        else
            parent::exchangeArray (\Arr::reindex(parent::getArrayCopy ()));
    }
    
    final public function clear(){
        parent::exchangeArray([]);
    }

}

final class LineItemList extends \ArrayObject {

    use GenericList;

    public function offsetSet($offset, $value) {
        if (!($value instanceof LineItemBase)) {
            throw new \InvalidArgumentException("Value has to be a instance of LineItemBase");
        }
        parent::offsetSet($offset, $value);
    }
}

class LineItemBase{
    public $blah;
    public function __construct(string $blah){
        $this->blah = $blah;
    }
}

$list = new LineItemList();
$list []= new LineItemBase('SDSdSD');
echo $list [0]->blah;

Output for git.master, git.master_jit, rfc.property-hooks: Deprecated: Return type of LineItemList::offsetSet($offset, $value) should either be compatible with ArrayObject::offsetSet(mixed $key, mixed $value): void, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /in/FPKJP on line 36 Deprecated: Return type of GenericList::offsetUnset($offset) should either be compatible with ArrayObject::offsetUnset(mixed $key): void, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /in/FPKJP on line 15 SDSdSD

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2022-12-01 RFC: Property hooks - included in PHP 8.4
2020-03-21 RFC: Is_Literal - declined
2020-12-04 Enumerations - included in PHP 8.1
2018-06-15 Typed Properties v2 - implemented in PHP 7.4
2016-08-12 Object typehint - included in PHP 7.2
2016-08-14 Arrow functions - withdrawn
2016-05-29 array_change_keys() - withdrawn
2016-04-19 Lexical scope support for anonymous classes - suspended
2016-04-17 Functional Interfaces - declined
2016-03-16 Typed Properties - superseded in favor of Typed Properties 2.0
2015-08-27 Callable Prototypes - declined
2015-05-01 Short Closures - declined / withdrawn in favor of Arrow Functions
2015-02-18 Scalar type hints v5 - included in PHP 7
2015-02-14 Union Types - declined
2013-09-22 Anonymous classes - included in PHP 7

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