/home/ytevagd/domains/ytevagiadinh.com/public_html/wp-includes/class-wp-block-list.php
<?php
/**
 * Blocks API: WP_Block_List class
 *
 * @package WordPress
 * @since 5.5.0
 */

/**
 * Class representing a list of block instances.
 *
 * @since 5.5.0
 */
#[AllowDynamicProperties]
class WP_Block_List implements Iterator, ArrayAccess, Countable {

	/**
	 * Original array of parsed block data, or block instances.
	 *
	 * @since 5.5.0
	 * @var array[]|WP_Block[]
	 * @access protected
	 */
	protected $blocks;

	/**
	 * All available context of the current hierarchy.
	 *
	 * @since 5.5.0
	 * @var array
	 * @access protected
	 */
	protected $available_context;

	/**
	 * Block type registry to use in constructing block instances.
	 *
	 * @since 5.5.0
	 * @var WP_Block_Type_Registry
	 * @access protected
	 */
	protected $registry;

	/**
	 * Constructor.
	 *
	 * Populates object properties from the provided block instance argument.
	 *
	 * @since 5.5.0
	 *
	 * @param array[]|WP_Block[]     $blocks            Array of parsed block data, or block instances.
	 * @param array                  $available_context Optional array of ancestry context values.
	 * @param WP_Block_Type_Registry $registry          Optional block type registry.
	 */
	public function __construct( $blocks, $available_context = array(), $registry = null ) {
		if ( ! $registry instanceof WP_Block_Type_Registry ) {
			$registry = WP_Block_Type_Registry::get_instance();
		}

		$this->blocks            = $blocks;
		$this->available_context = $available_context;
		$this->registry          = $registry;
	}

	/**
	 * Returns true if a block exists by the specified block offset, or false
	 * otherwise.
	 *
	 * @since 5.5.0
	 *
	 * @link https://www.php.net/manual/en/arrayaccess.offsetexists.php
	 *
	 * @param string $offset Offset of block to check for.
	 * @return bool Whether block exists.
	 */
	#[ReturnTypeWillChange]
	public function offsetExists( $offset ) {
		return isset( $this->blocks[ $offset ] );
	}

	/**
	 * Returns the value by the specified block offset.
	 *
	 * @since 5.5.0
	 *
	 * @link https://www.php.net/manual/en/arrayaccess.offsetget.php
	 *
	 * @param string $offset Offset of block value to retrieve.
	 * @return mixed|null Block value if exists, or null.
	 */
	#[ReturnTypeWillChange]
	public function offsetGet( $offset ) {
		$block = $this->blocks[ $offset ];

		if ( isset( $block ) && is_array( $block ) ) {
			$block = new WP_Block( $block, $this->available_context, $this->registry );

			$this->blocks[ $offset ] = $block;
		}

		return $block;
	}

	/**
	 * Assign a block value by the specified block offset.
	 *
	 * @since 5.5.0
	 *
	 * @link https://www.php.net/manual/en/arrayaccess.offsetset.php
	 *
	 * @param string $offset Offset of block value to set.
	 * @param mixed  $value Block value.
	 */
	#[ReturnTypeWillChange]
	public function offsetSet( $offset, $value ) {
		if ( is_null( $offset ) ) {
			$this->blocks[] = $value;
		} else {
			$this->blocks[ $offset ] = $value;
		}
	}

	/**
	 * Unset a block.
	 *
	 * @since 5.5.0
	 *
	 * @link https://www.php.net/manual/en/arrayaccess.offsetunset.php
	 *
	 * @param string $offset Offset of block value to unset.
	 */
	#[ReturnTypeWillChange]
	public function offsetUnset( $offset ) {
		unset( $this->blocks[ $offset ] );
	}

	/**
	 * Rewinds back to the first element of the Iterator.
	 *
	 * @since 5.5.0
	 *
	 * @link https://www.php.net/manual/en/iterator.rewind.php
	 */
	#[ReturnTypeWillChange]
	public function rewind() {
		reset( $this->blocks );
	}

	/**
	 * Returns the current element of the block list.
	 *
	 * @since 5.5.0
	 *
	 * @link https://www.php.net/manual/en/iterator.current.php
	 *
	 * @return mixed Current element.
	 */
	#[ReturnTypeWillChange]
	public function current() {
		return $this->offsetGet( $this->key() );
	}

	/**
	 * Returns the key of the current element of the block list.
	 *
	 * @since 5.5.0
	 *
	 * @link https://www.php.net/manual/en/iterator.key.php
	 *
	 * @return mixed Key of the current element.
	 */
	#[ReturnTypeWillChange]
	public function key() {
		return key( $this->blocks );
	}

	/**
	 * Moves the current position of the block list to the next element.
	 *
	 * @since 5.5.0
	 *
	 * @link https://www.php.net/manual/en/iterator.next.php
	 */
	#[ReturnTypeWillChange]
	public function next() {
		next( $this->blocks );
	}

	/**
	 * Checks if current position is valid.
	 *
	 * @since 5.5.0
	 *
	 * @link https://www.php.net/manual/en/iterator.valid.php
	 */
	#[ReturnTypeWillChange]
	public function valid() {
		return null !== key( $this->blocks );
	}

	/**
	 * Returns the count of blocks in the list.
	 *
	 * @since 5.5.0
	 *
	 * @link https://www.php.net/manual/en/countable.count.php
	 *
	 * @return int Block count.
	 */
	#[ReturnTypeWillChange]
	public function count() {
		return count( $this->blocks );
	}
}
Máy đo huyết áp bắp tay BM49(bao gồm Adapter, loa) - Giải pháp chăm sóc tại nhà Việt Nam

Máy đo huyết áp bắp tay BM49(bao gồm Adapter, loa)

1,450,000

Máy đo huyết áp bắp tay, giá bao gồm
Adapter, có loa
* Bộ nhớ 2×60, chu vi vòng bit 35-44cm, màn hình lớn
* Cảnh báo lỗi không đo được khi quấn vòng bit quá chặt hoặc quá lỏng
* Có loa ngoài
* Có vạch chỉ thị màu huyết áp theo tiêu chuẩn của WHO
* Cảnh báo rối loạn nhịp tim
* Dùng được với adapter, tự động tắt khi không sử dụng, cảnh báo pin yếu
* Bảo hành 36 tháng
* Sử dụng 4 pin AAx1,5V