Collection.php

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<?php
namespace Slim;
 
use ArrayIterator;
use Slim\Interfaces\CollectionInterface;
 
class Collection implements CollectionInterface
{
    protected $data = [];
 
    public function __construct(array $items = [])
    {
        $this->replace($items);
    }
 
    /********************************************************************************
     * Collection interface
     *******************************************************************************/
 
    public function set($key, $value)
    {
        $this->data[$key] = $value;
    }
 
    public function get($key, $default = null)
    {
        return $this->has($key) ? $this->data[$key] : $default;
    }
 
    public function replace(array $items)
    {
        foreach ($items as $key => $value) {
            $this->set($key, $value);
        }
    }
 
    public function all()
    {
        return $this->data;
    }
 
    public function keys()
    {
        return array_keys($this->data);
    }
 
    public function has($key)
    {
        return array_key_exists($key, $this->data);
    }
 
    public function remove($key)
    {
        unset($this->data[$key]);
    }
 
    public function clear()
    {
        $this->data = [];
    }
 
    /********************************************************************************
     * ArrayAccess interface
     *******************************************************************************/
 
    public function offsetExists($key)
    {
        return $this->has($key);
    }
 
    public function offsetGet($key)
    {
        return $this->get($key);
    }
 
    public function offsetSet($key, $value)
    {
        $this->set($key, $value);
    }
 
    public function offsetUnset($key)
    {
        $this->remove($key);
    }
 
    public function count()
    {
        return count($this->data);
    }
 
    /********************************************************************************
     * IteratorAggregate interface
     *******************************************************************************/
 
    public function getIterator()
    {
        return new ArrayIterator($this->data);
    }
}