70 	 * @link https://www.php.net/manual/en/arrayaccess.offsetexists.php

    70 	 * @link https://www.php.net/manual/en/arrayaccess.offsetexists.php

    71 	 *

    71 	 *

    72 	 * @param string $index Index of block to check.

    72 	 * @param string $index Index of block to check.

    73 	 * @return bool Whether block exists.

    73 	 * @return bool Whether block exists.

    74 	 */

    74 	 */

    75 	public function offsetExists( $index ) {

    76 	public function offsetExists( $index ) {

    76 		return isset( $this->blocks[ $index ] );

    77 		return isset( $this->blocks[ $index ] );

    77 	}

    78 	}

    78 

    79 

    79 	/**

    80 	/**

    84 	 * @link https://www.php.net/manual/en/arrayaccess.offsetget.php

    85 	 * @link https://www.php.net/manual/en/arrayaccess.offsetget.php

    85 	 *

    86 	 *

    86 	 * @param string $index Index of block value to retrieve.

    87 	 * @param string $index Index of block value to retrieve.

    87 	 * @return mixed|null Block value if exists, or null.

    88 	 * @return mixed|null Block value if exists, or null.

    88 	 */

    89 	 */

    89 	public function offsetGet( $index ) {

    91 	public function offsetGet( $index ) {

    90 		$block = $this->blocks[ $index ];

    92 		$block = $this->blocks[ $index ];

    91 

    93 

    92 		if ( isset( $block ) && is_array( $block ) ) {

    94 		if ( isset( $block ) && is_array( $block ) ) {

    93 			$block                  = new WP_Block( $block, $this->available_context, $this->registry );

    95 			$block                  = new WP_Block( $block, $this->available_context, $this->registry );

   105 	 * @link https://www.php.net/manual/en/arrayaccess.offsetset.php

   107 	 * @link https://www.php.net/manual/en/arrayaccess.offsetset.php

   106 	 *

   108 	 *

   107 	 * @param string $index Index of block value to set.

   109 	 * @param string $index Index of block value to set.

   108 	 * @param mixed  $value Block value.

   110 	 * @param mixed  $value Block value.

   109 	 */

   111 	 */

   110 	public function offsetSet( $index, $value ) {

   113 	public function offsetSet( $index, $value ) {

   111 		if ( is_null( $index ) ) {

   114 		if ( is_null( $index ) ) {

   112 			$this->blocks[] = $value;

   115 			$this->blocks[] = $value;

   113 		} else {

   116 		} else {

   114 			$this->blocks[ $index ] = $value;

   117 			$this->blocks[ $index ] = $value;

   122 	 *

   125 	 *

   123 	 * @link https://www.php.net/manual/en/arrayaccess.offsetunset.php

   126 	 * @link https://www.php.net/manual/en/arrayaccess.offsetunset.php

   124 	 *

   127 	 *

   125 	 * @param string $index Index of block value to unset.

   128 	 * @param string $index Index of block value to unset.

   126 	 */

   129 	 */

   127 	public function offsetUnset( $index ) {

   131 	public function offsetUnset( $index ) {

   128 		unset( $this->blocks[ $index ] );

   132 		unset( $this->blocks[ $index ] );

   129 	}

   133 	}

   130 

   134 

   131 	/**

   135 	/**

   133 	 *

   137 	 *

   134 	 * @since 5.5.0

   138 	 * @since 5.5.0

   135 	 *

   139 	 *

   136 	 * @link https://www.php.net/manual/en/iterator.rewind.php

   140 	 * @link https://www.php.net/manual/en/iterator.rewind.php

   137 	 */

   141 	 */

   138 	public function rewind() {

   143 	public function rewind() {

   139 		reset( $this->blocks );

   144 		reset( $this->blocks );

   140 	}

   145 	}

   141 

   146 

   142 	/**

   147 	/**

   146 	 *

   151 	 *

   147 	 * @link https://www.php.net/manual/en/iterator.current.php

   152 	 * @link https://www.php.net/manual/en/iterator.current.php

   148 	 *

   153 	 *

   149 	 * @return mixed Current element.

   154 	 * @return mixed Current element.

   150 	 */

   155 	 */

   151 	public function current() {

   157 	public function current() {

   152 		return $this->offsetGet( $this->key() );

   158 		return $this->offsetGet( $this->key() );

   153 	}

   159 	}

   154 

   160 

   155 	/**

   161 	/**

   159 	 *

   165 	 *

   160 	 * @link https://www.php.net/manual/en/iterator.key.php

   166 	 * @link https://www.php.net/manual/en/iterator.key.php

   161 	 *

   167 	 *

   162 	 * @return mixed Key of the current element.

   168 	 * @return mixed Key of the current element.

   163 	 */

   169 	 */

   164 	public function key() {

   171 	public function key() {

   165 		return key( $this->blocks );

   172 		return key( $this->blocks );

   166 	}

   173 	}

   167 

   174 

   168 	/**

   175 	/**

   170 	 *

   177 	 *

   171 	 * @since 5.5.0

   178 	 * @since 5.5.0

   172 	 *

   179 	 *

   173 	 * @link https://www.php.net/manual/en/iterator.next.php

   180 	 * @link https://www.php.net/manual/en/iterator.next.php

   174 	 */

   181 	 */

   175 	public function next() {

   183 	public function next() {

   176 		next( $this->blocks );

   184 		next( $this->blocks );

   177 	}

   185 	}

   178 

   186 

   179 	/**

   187 	/**

   181 	 *

   189 	 *

   182 	 * @since 5.5.0

   190 	 * @since 5.5.0

   183 	 *

   191 	 *

   184 	 * @link https://www.php.net/manual/en/iterator.valid.php

   192 	 * @link https://www.php.net/manual/en/iterator.valid.php

   185 	 */

   193 	 */

   186 	public function valid() {

   195 	public function valid() {

   187 		return null !== key( $this->blocks );

   196 		return null !== key( $this->blocks );

   188 	}

   197 	}

   189 

   198 

   190 	/**

   199 	/**

   194 	 *

   203 	 *

   195 	 * @link https://www.php.net/manual/en/countable.count.php

   204 	 * @link https://www.php.net/manual/en/countable.count.php

   196 	 *

   205 	 *

   197 	 * @return int Block count.

   206 	 * @return int Block count.

   198 	 */

   207 	 */

   199 	public function count() {

   209 	public function count() {

   200 		return count( $this->blocks );

   210 		return count( $this->blocks );

   201 	}

   211 	}

   202 

   212 

   203 }

   213 }