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<?php
namespace RocketTheme\Toolbox\ArrayTraits;
/**
* Implements ArrayAccess interface.
*
* @package RocketTheme\Toolbox\ArrayTraits
* @author RocketTheme
* @license MIT
*/
trait ArrayAccess
{
/**
* Tests if an offset exists.
*
* @param string|int $offset An offset to check for.
* @return bool Returns TRUE on success or FALSE on failure.
*/
#[\ReturnTypeWillChange]
public function offsetExists($offset)
{
return isset($this->items[$offset]);
}
/**
* Returns the value at specified offset.
*
* @param string|int $offset The offset to retrieve.
* @return mixed Can return all value types.
*/
#[\ReturnTypeWillChange]
public function offsetGet($offset)
{
return isset($this->items[$offset]) ? $this->items[$offset] : null;
}
/**
* Assigns a value to the specified offset.
*
* @param string|int|null $offset The offset to assign the value to.
* @param mixed $value The value to set.
* @return void
*/
#[\ReturnTypeWillChange]
public function offsetSet($offset, $value)
{
if (null === $offset) {
$this->items[] = $value;
} else {
$this->items[$offset] = $value;
}
}
/**
* Unsets an offset.
*
* @param string|int $offset The offset to unset.
* @return void
*/
#[\ReturnTypeWillChange]
public function offsetUnset($offset)
{
// Hack to make Iterator trait work together with unset.
if (isset($this->iteratorUnset) && (string)$offset === (string)key($this->items)) {
$this->iteratorUnset = true;
}
unset($this->items[$offset]);
}
}