diff --git a/src/wp-includes/blocks.php b/src/wp-includes/blocks.php
index a0360ffdc8bf8..2b5ed62a74388 100644
--- a/src/wp-includes/blocks.php
+++ b/src/wp-includes/blocks.php
@@ -677,7 +677,8 @@ function register_block_type_from_metadata( $file_or_folder, $args = array() ) {
 			$scripts           = $metadata[ $metadata_field_name ];
 			$processed_scripts = array();
 			if ( is_array( $scripts ) ) {
-				for ( $index = 0; $index < count( $scripts ); $index++ ) {
+				$script_count = count( $scripts );
+				for ( $index = 0; $index < $script_count; $index++ ) {
 					$result = register_block_script_handle(
 						$metadata,
 						$metadata_field_name,
@@ -711,7 +712,8 @@ function register_block_type_from_metadata( $file_or_folder, $args = array() ) {
 			$modules           = $metadata[ $metadata_field_name ];
 			$processed_modules = array();
 			if ( is_array( $modules ) ) {
-				for ( $index = 0; $index < count( $modules ); $index++ ) {
+				$module_count = count( $modules );
+				for ( $index = 0; $index < $module_count; $index++ ) {
 					$result = register_block_script_module_id(
 						$metadata,
 						$metadata_field_name,
@@ -747,7 +749,8 @@ function register_block_type_from_metadata( $file_or_folder, $args = array() ) {
 			$styles           = $metadata[ $metadata_field_name ];
 			$processed_styles = array();
 			if ( is_array( $styles ) ) {
-				for ( $index = 0; $index < count( $styles ); $index++ ) {
+				$style_count = count( $styles );
+				for ( $index = 0; $index < $style_count; $index++ ) {
 					$result = register_block_style_handle(
 						$metadata,
 						$metadata_field_name,
diff --git a/src/wp-includes/class-wp-theme-json.php b/src/wp-includes/class-wp-theme-json.php
index 7e2cb54731b1f..be77c486ce6f5 100644
--- a/src/wp-includes/class-wp-theme-json.php
+++ b/src/wp-includes/class-wp-theme-json.php
@@ -5379,7 +5379,8 @@ public function set_spacing_sizes() {
 
 		// If there are 7 or fewer steps in the scale revert to numbers for labels instead of t-shirt sizes.
 		if ( $spacing_scale['steps'] <= 7 ) {
-			for ( $spacing_sizes_count = 0; $spacing_sizes_count < count( $spacing_sizes ); $spacing_sizes_count++ ) {
+			$total_spacing_sizes = count( $spacing_sizes );
+			for ( $spacing_sizes_count = 0; $spacing_sizes_count < $total_spacing_sizes; $spacing_sizes_count++ ) {
 				$spacing_sizes[ $spacing_sizes_count ]['name'] = (string) ( $spacing_sizes_count + 1 );
 			}
 		}