Online PHP editor | output for FPKJP

@ 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 8.5.0 - 8.5.7: Deprecated: Return type of LineItemList::offsetSet($offset, $value) should either be compatible with ArrayObject::offsetSet(mixed $key, mixed $value): void, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /in/FPKJP on line 36 Deprecated: Return type of LineItemList::offsetUnset($offset) should either be compatible with ArrayObject::offsetUnset(mixed $key): void, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /in/FPKJP on line 15 SDSdSD
Output for 8.1.0 - 8.1.34, 8.2.0 - 8.2.30, 8.3.0 - 8.3.31, 8.4.1 - 8.4.22: Deprecated: Return type of LineItemList::offsetSet($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
Output for 7.0.0 - 7.0.33, 7.1.0 - 7.1.33, 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30: SDSdSD
Output for 5.6.0 - 5.6.40: Catchable fatal error: Argument 1 passed to LineItemBase::__construct() must be an instance of string, string given, called in /in/FPKJP on line 52 and defined in /in/FPKJP on line 46
Process exited with code 255.

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