diff --git a/wp-includes/post-template.php b/wp-includes/post-template.php
index 3ce819c2b0..4e1bb17502 100644
--- a/wp-includes/post-template.php
+++ b/wp-includes/post-template.php
@@ -34,12 +34,12 @@ function get_the_ID() { // phpcs:ignore WordPress.NamingConventions.ValidFunctio
  *
  * @since 0.71
  *
- * @param string $before Optional. Markup to prepend to the title. Default empty.
- * @param string $after  Optional. Markup to append to the title. Default empty.
- * @param bool   $echo   Optional. Whether to echo or return the title. Default true for echo.
- * @return void|string Void if `$echo` argument is true, current post title if `$echo` is false.
+ * @param string $before  Optional. Markup to prepend to the title. Default empty.
+ * @param string $after   Optional. Markup to append to the title. Default empty.
+ * @param bool   $display Optional. Whether to echo or return the title. Default true for echo.
+ * @return void|string Void if `$display` argument is true, current post title if `$display` is false.
  */
-function the_title( $before = '', $after = '', $echo = true ) {
+function the_title( $before = '', $after = '', $display = true ) {
 	$title = get_the_title();
 
 	if ( strlen( $title ) == 0 ) {
@@ -48,7 +48,7 @@ function the_title( $before = '', $after = '', $echo = true ) {
 
 	$title = $before . $title . $after;
 
-	if ( $echo ) {
+	if ( $display ) {
 		echo $title;
 	} else {
 		return $title;
@@ -453,12 +453,13 @@ function has_excerpt( $post = 0 ) {
  *
  * @since 2.7.0
  *
- * @param string|string[] $class One or more classes to add to the class list.
- * @param int|WP_Post     $post  Optional. Post ID or post object. Defaults to the global `$post`.
+ * @param string|string[] $css_class Optional. One or more classes to add to the class list.
+ *                                   Default empty.
+ * @param int|WP_Post     $post      Optional. Post ID or post object. Defaults to the global `$post`.
  */
-function post_class( $class = '', $post = null ) {
+function post_class( $css_class = '', $post = null ) {
 	// Separates classes with a single space, collates classes for post DIV.
-	echo 'class="' . esc_attr( implode( ' ', get_post_class( $class, $post ) ) ) . '"';
+	echo 'class="' . esc_attr( implode( ' ', get_post_class( $css_class, $post ) ) ) . '"';
 }
 
 /**
@@ -473,28 +474,29 @@ function post_class( $class = '', $post = null ) {
  * The 'post_tag' taxonomy is a special
  * case; the class has the 'tag-' prefix instead of 'post_tag-'. All class names are
  * passed through the filter, {@see 'post_class'}, with the list of class names, followed by
- * $class parameter value, with the post ID as the last parameter.
+ * $css_class parameter value, with the post ID as the last parameter.
  *
  * @since 2.7.0
  * @since 4.2.0 Custom taxonomy class names were added.
  *
- * @param string|string[] $class Space-separated string or array of class names to add to the class list.
- * @param int|WP_Post     $post  Optional. Post ID or post object.
+ * @param string|string[] $css_class Optional. Space-separated string or array of class names
+ *                                   to add to the class list. Default empty.
+ * @param int|WP_Post     $post      Optional. Post ID or post object.
  * @return string[] Array of class names.
  */
-function get_post_class( $class = '', $post = null ) {
+function get_post_class( $css_class = '', $post = null ) {
 	$post = get_post( $post );
 
 	$classes = array();
 
-	if ( $class ) {
-		if ( ! is_array( $class ) ) {
-			$class = preg_split( '#\s+#', $class );
+	if ( $css_class ) {
+		if ( ! is_array( $css_class ) ) {
+			$css_class = preg_split( '#\s+#', $css_class );
 		}
-		$classes = array_map( 'esc_attr', $class );
+		$classes = array_map( 'esc_attr', $css_class );
 	} else {
 		// Ensure that we always coerce class to being an array.
-		$class = array();
+		$css_class = array();
 	}
 
 	if ( ! $post ) {
@@ -558,9 +560,9 @@ function get_post_class( $class = '', $post = null ) {
 	 * @param string[] $taxonomies List of all taxonomy names to generate classes for.
 	 * @param int      $post_id    The post ID.
 	 * @param string[] $classes    An array of post class names.
-	 * @param string[] $class      An array of additional class names added to the post.
+	 * @param string[] $css_class  An array of additional class names added to the post.
 	*/
-	$taxonomies = apply_filters( 'post_class_taxonomies', $taxonomies, $post->ID, $classes, $class );
+	$taxonomies = apply_filters( 'post_class_taxonomies', $taxonomies, $post->ID, $classes, $css_class );
 
 	foreach ( (array) $taxonomies as $taxonomy ) {
 		if ( is_object_in_taxonomy( $post->post_type, $taxonomy ) ) {
@@ -591,11 +593,11 @@ function get_post_class( $class = '', $post = null ) {
 	 *
 	 * @since 2.7.0
 	 *
-	 * @param string[] $classes An array of post class names.
-	 * @param string[] $class   An array of additional class names added to the post.
-	 * @param int      $post_id The post ID.
+	 * @param string[] $classes   An array of post class names.
+	 * @param string[] $css_class An array of additional class names added to the post.
+	 * @param int      $post_id   The post ID.
 	 */
-	$classes = apply_filters( 'post_class', $classes, $class, $post->ID );
+	$classes = apply_filters( 'post_class', $classes, $css_class, $post->ID );
 
 	return array_unique( $classes );
 }
@@ -605,11 +607,12 @@ function get_post_class( $class = '', $post = null ) {
  *
  * @since 2.8.0
  *
- * @param string|string[] $class Space-separated string or array of class names to add to the class list.
+ * @param string|string[] $css_class Optional. Space-separated string or array of class names
+ *                                   to add to the class list. Default empty.
  */
-function body_class( $class = '' ) {
+function body_class( $css_class = '' ) {
 	// Separates class names with a single space, collates class names for body element.
-	echo 'class="' . esc_attr( implode( ' ', get_body_class( $class ) ) ) . '"';
+	echo 'class="' . esc_attr( implode( ' ', get_body_class( $css_class ) ) ) . '"';
 }
 
 /**
@@ -619,10 +622,11 @@ function body_class( $class = '' ) {
  *
  * @global WP_Query $wp_query WordPress Query object.
  *
- * @param string|string[] $class Space-separated string or array of class names to add to the class list.
+ * @param string|string[] $css_class Optional. Space-separated string or array of class names
+ *                                   to add to the class list. Default empty.
  * @return string[] Array of class names.
  */
-function get_body_class( $class = '' ) {
+function get_body_class( $css_class = '' ) {
 	global $wp_query;
 
 	$classes = array();
@@ -830,14 +834,14 @@ function get_body_class( $class = '' ) {
 		}
 	}
 
-	if ( ! empty( $class ) ) {
-		if ( ! is_array( $class ) ) {
-			$class = preg_split( '#\s+#', $class );
+	if ( ! empty( $css_class ) ) {
+		if ( ! is_array( $css_class ) ) {
+			$css_class = preg_split( '#\s+#', $css_class );
 		}
-		$classes = array_merge( $classes, $class );
+		$classes = array_merge( $classes, $css_class );
 	} else {
 		// Ensure that we always coerce class to being an array.
-		$class = array();
+		$css_class = array();
 	}
 
 	$classes = array_map( 'esc_attr', $classes );
@@ -847,10 +851,10 @@ function get_body_class( $class = '' ) {
 	 *
 	 * @since 2.8.0
 	 *
-	 * @param string[] $classes An array of body class names.
-	 * @param string[] $class   An array of additional class names added to the body.
+	 * @param string[] $classes   An array of body class names.
+	 * @param string[] $css_class An array of additional class names added to the body.
 	 */
-	$classes = apply_filters( 'body_class', $classes, $class );
+	$classes = apply_filters( 'body_class', $classes, $css_class );
 
 	return array_unique( $classes );
 }
diff --git a/wp-includes/version.php b/wp-includes/version.php
index 1b7933ac73..8bd48d0f89 100644
--- a/wp-includes/version.php
+++ b/wp-includes/version.php
@@ -16,7 +16,7 @@
  *
  * @global string $wp_version
  */
-$wp_version = '6.2-alpha-54955';
+$wp_version = '6.2-alpha-54956';
 
 /**
  * Holds the WordPress DB revision, increments when changes are made to the WordPress DB schema.