PropertyList.php

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<?php
 
declare(strict_types=0);
 
namespace ILIAS\Tracking\View\PropertyList;
 
use ILIAS\Tracking\View\PropertyList\PropertyListInterface;
 
class PropertyList implements PropertyListInterface
{
    protected int $index;
    protected array $values;
    protected array $keys;
 
    public function __construct(
        array $properties
    ) {
        $this->index = 0;
        $this->values = array_values($properties);
        $this->keys = array_keys($properties);
    }
 
    public function next(): void
    {
        $this->index++;
    }
 
    public function rewind(): void
    {
        $this->index = 0;
    }
 
    public function valid(): bool
    {
        return isset($this->keys[$this->index]);
    }
 
    public function key(): string
    {
        return $this->keys[$this->index];
    }
 
    public function current(): string
    {
        return $this->values[$this->index];
    }
 
    public function count(): int
    {
        return count($this->keys);
    }
}