diff --git a/src/wp-includes/html-api/class-wp-html-tag-processor.php b/src/wp-includes/html-api/class-wp-html-tag-processor.php
index 3d0ad82519..2ac8f469cf 100644
--- a/src/wp-includes/html-api/class-wp-html-tag-processor.php
+++ b/src/wp-includes/html-api/class-wp-html-tag-processor.php
@@ -39,10 +39,10 @@
  *
  * Example:
  * ```php
- *     $tags = new WP_HTML_Tag_Processor( $html );
- *     if ( $tags->next_tag( 'option' ) ) {
- *         $tags->set_attribute( 'selected', true );
- *     }
+ * $tags = new WP_HTML_Tag_Processor( $html );
+ * if ( $tags->next_tag( 'option' ) ) {
+ *     $tags->set_attribute( 'selected', true );
+ * }
  * ```
  *
  * ### Finding tags
@@ -55,7 +55,7 @@
  *
  * If you want to _find whatever the next tag is_:
  * ```php
- *     $tags->next_tag();
+ * $tags->next_tag();
  * ```
  *
  * | Goal                                                      | Query                                                                           |
@@ -88,17 +88,17 @@
  *
  * Example:
  * ```php
- *     // Paint up to the first five DIV or SPAN tags marked with the "jazzy" style.
- *     $remaining_count = 5;
- *     while ( $remaining_count > 0 && $tags->next_tag() ) {
- *         if (
- *              ( 'DIV' === $tags->get_tag() || 'SPAN' === $tags->get_tag() ) &&
- *              'jazzy' === $tags->get_attribute( 'data-style' )
- *         ) {
- *             $tags->add_class( 'theme-style-everest-jazz' );
- *             $remaining_count--;
- *         }
+ * // Paint up to the first five DIV or SPAN tags marked with the "jazzy" style.
+ * $remaining_count = 5;
+ * while ( $remaining_count > 0 && $tags->next_tag() ) {
+ *     if (
+ *          ( 'DIV' === $tags->get_tag() || 'SPAN' === $tags->get_tag() ) &&
+ *          'jazzy' === $tags->get_attribute( 'data-style' )
+ *     ) {
+ *         $tags->add_class( 'theme-style-everest-jazz' );
+ *         $remaining_count--;
  *     }
+ * }
  * ```
  *
  * `get_attribute()` will return `null` if the attribute wasn't present
@@ -117,10 +117,10 @@
  *
  * Example:
  * ```php
- *     if ( $tags->next_tag( array( 'class' => 'wp-group-block' ) ) ) {
- *         $tags->set_attribute( 'title', 'This groups the contained content.' );
- *         $tags->remove_attribute( 'data-test-id' );
- *     }
+ * if ( $tags->next_tag( array( 'class' => 'wp-group-block' ) ) ) {
+ *     $tags->set_attribute( 'title', 'This groups the contained content.' );
+ *     $tags->remove_attribute( 'data-test-id' );
+ * }
  * ```
  *
  * If `set_attribute()` is called for an existing attribute it will
@@ -142,29 +142,29 @@
  *
  * Example:
  * ```php
- *     // from `<span>Yippee!</span>`
- *     //   to `<span class="is-active">Yippee!</span>`
- *     $tags->add_class( 'is-active' );
+ * // from `<span>Yippee!</span>`
+ * //   to `<span class="is-active">Yippee!</span>`
+ * $tags->add_class( 'is-active' );
  *
- *     // from `<span class="excited">Yippee!</span>`
- *     //   to `<span class="excited is-active">Yippee!</span>`
- *     $tags->add_class( 'is-active' );
+ * // from `<span class="excited">Yippee!</span>`
+ * //   to `<span class="excited is-active">Yippee!</span>`
+ * $tags->add_class( 'is-active' );
  *
- *     // from `<span class="is-active heavy-accent">Yippee!</span>`
- *     //   to `<span class="is-active heavy-accent">Yippee!</span>`
- *     $tags->add_class( 'is-active' );
+ * // from `<span class="is-active heavy-accent">Yippee!</span>`
+ * //   to `<span class="is-active heavy-accent">Yippee!</span>`
+ * $tags->add_class( 'is-active' );
  *
- *     // from `<input type="text" class="is-active rugby not-disabled" length="24">`
- *     //   to `<input type="text" class="is-active not-disabled" length="24">
- *     $tags->remove_class( 'rugby' );
+ * // from `<input type="text" class="is-active rugby not-disabled" length="24">`
+ * //   to `<input type="text" class="is-active not-disabled" length="24">
+ * $tags->remove_class( 'rugby' );
  *
- *     // from `<input type="text" class="rugby" length="24">`
- *     //   to `<input type="text" length="24">
- *     $tags->remove_class( 'rugby' );
+ * // from `<input type="text" class="rugby" length="24">`
+ * //   to `<input type="text" length="24">
+ * $tags->remove_class( 'rugby' );
  *
- *     // from `<input type="text" length="24">`
- *     //   to `<input type="text" length="24">
- *     $tags->remove_class( 'rugby' );
+ * // from `<input type="text" length="24">`
+ * //   to `<input type="text" length="24">
+ * $tags->remove_class( 'rugby' );
  * ```
  *
  * When class changes are enqueued but a direct change to `class` is made via
@@ -185,24 +185,24 @@
  * bookmark and update it frequently, such as within a loop.
  *
  * ```php
- *     $total_todos = 0;
- *     while ( $p->next_tag( array( 'tag_name' => 'UL', 'class_name' => 'todo' ) ) ) {
- *         $p->set_bookmark( 'list-start' );
- *         while ( $p->next_tag( array( 'tag_closers' => 'visit' ) ) ) {
- *             if ( 'UL' === $p->get_tag() && $p->is_tag_closer() ) {
- *                 $p->set_bookmark( 'list-end' );
- *                 $p->seek( 'list-start' );
- *                 $p->set_attribute( 'data-contained-todos', (string) $total_todos );
- *                 $total_todos = 0;
- *                 $p->seek( 'list-end' );
- *                 break;
- *             }
+ * $total_todos = 0;
+ * while ( $p->next_tag( array( 'tag_name' => 'UL', 'class_name' => 'todo' ) ) ) {
+ *     $p->set_bookmark( 'list-start' );
+ *     while ( $p->next_tag( array( 'tag_closers' => 'visit' ) ) ) {
+ *         if ( 'UL' === $p->get_tag() && $p->is_tag_closer() ) {
+ *             $p->set_bookmark( 'list-end' );
+ *             $p->seek( 'list-start' );
+ *             $p->set_attribute( 'data-contained-todos', (string) $total_todos );
+ *             $total_todos = 0;
+ *             $p->seek( 'list-end' );
+ *             break;
+ *         }
  *
- *             if ( 'LI' === $p->get_tag() && ! $p->is_tag_closer() ) {
- *                 $total_todos++;
- *             }
+ *         if ( 'LI' === $p->get_tag() && ! $p->is_tag_closer() ) {
+ *             $total_todos++;
  *         }
  *     }
+ * }
  * ```
  *
  * ## Design and limitations
@@ -229,7 +229,7 @@
  * The Tag Processor's design incorporates a "garbage-in-garbage-out" philosophy.
  * HTML5 specifies that certain invalid content be transformed into different forms
  * for display, such as removing null bytes from an input document and replacing
- * invalid characters with the Unicode replacement character U+FFFD �. Where errors
+ * invalid characters with the Unicode replacement character `U+FFFD`. Where errors
  * or transformations exist within the HTML5 specification, the Tag Processor leaves
  * those invalid inputs untouched, passing them through to the final browser to handle.
  * While this implies that certain operations will be non-spec-compliant, such as
@@ -387,23 +387,23 @@ class WP_HTML_Tag_Processor {
 	 *
 	 * Example:
 	 * ```php
-	 *     // supposing the parser is working through this content
-	 *     // and stops after recognizing the `id` attribute
-	 *     // <div id="test-4" class=outline title="data:text/plain;base64=asdk3nk1j3fo8">
-	 *     //                 ^ parsing will continue from this point
-	 *     $this->attributes = array(
-	 *         'id' => new WP_HTML_Attribute_Match( 'id', null, 6, 17 )
-	 *     );
+	 * // supposing the parser is working through this content
+	 * // and stops after recognizing the `id` attribute
+	 * // <div id="test-4" class=outline title="data:text/plain;base64=asdk3nk1j3fo8">
+	 * //                 ^ parsing will continue from this point
+	 * $this->attributes = array(
+	 *     'id' => new WP_HTML_Attribute_Match( 'id', null, 6, 17 )
+	 * );
 	 *
-	 *     // when picking up parsing again, or when asking to find the
-	 *     // `class` attribute we will continue and add to this array
-	 *     $this->attributes = array(
-	 *         'id'    => new WP_HTML_Attribute_Match( 'id', null, 6, 17 ),
-	 *         'class' => new WP_HTML_Attribute_Match( 'class', 'outline', 18, 32 )
-	 *     );
+	 * // when picking up parsing again, or when asking to find the
+	 * // `class` attribute we will continue and add to this array
+	 * $this->attributes = array(
+	 *     'id'    => new WP_HTML_Attribute_Match( 'id', null, 6, 17 ),
+	 *     'class' => new WP_HTML_Attribute_Match( 'class', 'outline', 18, 32 )
+	 * );
 	 *
-	 *     // Note that only the `class` attribute value is stored in the index.
-	 *     // That's because it is the only value used by this class at the moment.
+	 * // Note that only the `class` attribute value is stored in the index.
+	 * // That's because it is the only value used by this class at the moment.
 	 * ```
 	 *
 	 * @since 6.2.0
@@ -424,12 +424,12 @@ class WP_HTML_Tag_Processor {
 	 *
 	 * Example:
 	 * ```php
-	 *     // Add the `wp-block-group` class, remove the `wp-group` class.
-	 *     $classname_updates = array(
-	 *         // Indexed by a comparable class name
-	 *         'wp-block-group' => WP_HTML_Tag_Processor::ADD_CLASS,
-	 *         'wp-group'       => WP_HTML_Tag_Processor::REMOVE_CLASS
-	 *     );
+	 * // Add the `wp-block-group` class, remove the `wp-group` class.
+	 * $classname_updates = array(
+	 *     // Indexed by a comparable class name
+	 *     'wp-block-group' => WP_HTML_Tag_Processor::ADD_CLASS,
+	 *     'wp-group'       => WP_HTML_Tag_Processor::REMOVE_CLASS
+	 * );
 	 * ```
 	 *
 	 * @since 6.2.0
@@ -478,16 +478,16 @@ class WP_HTML_Tag_Processor {
 	 *
 	 * Example:
 	 * ```php
-	 *     // Replace an attribute stored with a new value, indices
-	 *     // sourced from the lazily-parsed HTML recognizer.
-	 *     $start = $attributes['src']->start;
-	 *     $end   = $attributes['src']->end;
-	 *     $modifications[] = new WP_HTML_Text_Replacement( $start, $end, $new_value );
+	 * // Replace an attribute stored with a new value, indices
+	 * // sourced from the lazily-parsed HTML recognizer.
+	 * $start = $attributes['src']->start;
+	 * $end   = $attributes['src']->end;
+	 * $modifications[] = new WP_HTML_Text_Replacement( $start, $end, $new_value );
 	 *
-	 *     // Correspondingly, something like this will appear in this array.
-	 *     $lexical_updates = array(
-	 *         WP_HTML_Text_Replacement( 14, 28, 'https://my-site.my-domain/wp-content/uploads/2014/08/kittens.jpg' )
-	 *     );
+	 * // Correspondingly, something like this will appear in this array.
+	 * $lexical_updates = array(
+	 *     WP_HTML_Text_Replacement( 14, 28, 'https://my-site.my-domain/wp-content/uploads/2014/08/kittens.jpg' )
+	 * );
 	 * ```
 	 *
 	 * @since 6.2.0
@@ -1661,14 +1661,14 @@ class WP_HTML_Tag_Processor {
 	 *
 	 * Example:
 	 * ```php
-	 *     $p = new WP_HTML_Tag_Processor( '<div enabled class="test" data-test-id="14">Test</div>' );
-	 *     $p->next_tag( array( 'class_name' => 'test' ) ) === true;
-	 *     $p->get_attribute( 'data-test-id' ) === '14';
-	 *     $p->get_attribute( 'enabled' ) === true;
-	 *     $p->get_attribute( 'aria-label' ) === null;
+	 * $p = new WP_HTML_Tag_Processor( '<div enabled class="test" data-test-id="14">Test</div>' );
+	 * $p->next_tag( array( 'class_name' => 'test' ) ) === true;
+	 * $p->get_attribute( 'data-test-id' ) === '14';
+	 * $p->get_attribute( 'enabled' ) === true;
+	 * $p->get_attribute( 'aria-label' ) === null;
 	 *
-	 *     $p->next_tag() === false;
-	 *     $p->get_attribute( 'class' ) === null;
+	 * $p->next_tag() === false;
+	 * $p->get_attribute( 'class' ) === null;
 	 * ```
 	 *
 	 * @since 6.2.0
@@ -1744,12 +1744,12 @@ class WP_HTML_Tag_Processor {
 	 *
 	 * Example:
 	 * ```php
-	 *     $p = new WP_HTML_Tag_Processor( '<div data-ENABLED class="test" DATA-test-id="14">Test</div>' );
-	 *     $p->next_tag( array( 'class_name' => 'test' ) ) === true;
-	 *     $p->get_attribute_names_with_prefix( 'data-' ) === array( 'data-enabled', 'data-test-id' );
+	 * $p = new WP_HTML_Tag_Processor( '<div data-ENABLED class="test" DATA-test-id="14">Test</div>' );
+	 * $p->next_tag( array( 'class_name' => 'test' ) ) === true;
+	 * $p->get_attribute_names_with_prefix( 'data-' ) === array( 'data-enabled', 'data-test-id' );
 	 *
-	 *     $p->next_tag() === false;
-	 *     $p->get_attribute_names_with_prefix( 'data-' ) === null;
+	 * $p->next_tag() === false;
+	 * $p->get_attribute_names_with_prefix( 'data-' ) === null;
 	 * ```
 	 *
 	 * @since 6.2.0
@@ -1778,12 +1778,12 @@ class WP_HTML_Tag_Processor {
 	 *
 	 * Example:
 	 * ```php
-	 *     $p = new WP_HTML_Tag_Processor( '<DIV CLASS="test">Test</DIV>' );
-	 *     $p->next_tag() === true;
-	 *     $p->get_tag() === 'DIV';
+	 * $p = new WP_HTML_Tag_Processor( '<DIV CLASS="test">Test</DIV>' );
+	 * $p->next_tag() === true;
+	 * $p->get_tag() === 'DIV';
 	 *
-	 *     $p->next_tag() === false;
-	 *     $p->get_tag() === null;
+	 * $p->next_tag() === false;
+	 * $p->get_tag() === null;
 	 * ```
 	 *
 	 * @since 6.2.0
@@ -1830,12 +1830,12 @@ class WP_HTML_Tag_Processor {
 	 *
 	 * Example:
 	 * ```php
-	 *     $p = new WP_HTML_Tag_Processor( '<div></div>' );
-	 *     $p->next_tag( array( 'tag_name' => 'div', 'tag_closers' => 'visit' ) );
-	 *     $p->is_tag_closer() === false;
+	 * $p = new WP_HTML_Tag_Processor( '<div></div>' );
+	 * $p->next_tag( array( 'tag_name' => 'div', 'tag_closers' => 'visit' ) );
+	 * $p->is_tag_closer() === false;
 	 *
-	 *     $p->next_tag( array( 'tag_name' => 'div', 'tag_closers' => 'visit' ) );
-	 *     $p->is_tag_closer() === true;
+	 * $p->next_tag( array( 'tag_name' => 'div', 'tag_closers' => 'visit' ) );
+	 * $p->is_tag_closer() === true;
 	 * ```
 	 *
 	 * @since 6.2.0