diff --git a/src/wp-admin/includes/class-plugin-installer-skin.php b/src/wp-admin/includes/class-plugin-installer-skin.php
index 59853c47d3..af95f038e4 100644
--- a/src/wp-admin/includes/class-plugin-installer-skin.php
+++ b/src/wp-admin/includes/class-plugin-installer-skin.php
@@ -214,7 +214,8 @@ class Plugin_Installer_Skin extends WP_Upgrader_Skin {
 		$table .= '<tr><th></th><th>' . esc_html( __( 'Current' ) ) . '</th>';
 		$table .= '<th>' . esc_html( __( 'Uploaded' ) ) . '</th></tr>';
 
-		$is_same_plugin = true; // Let's consider only these rows
+		$is_same_plugin = true; // Let's consider only these rows.
+
 		foreach ( $rows as $field => $label ) {
 			$old_value = ! empty( $current_plugin_data[ $field ] ) ? $current_plugin_data[ $field ] : '-';
 			$new_value = ! empty( $this->upgrader->new_plugin_data[ $field ] ) ? $this->upgrader->new_plugin_data[ $field ] : '-';
@@ -248,9 +249,8 @@ class Plugin_Installer_Skin extends WP_Upgrader_Skin {
 		$blocked_message  = '<p>' . esc_html( __( 'The plugin cannot be updated due to the following:' ) ) . '</p>';
 		$blocked_message .= '<ul class="ul-disc">';
 
-		if (
-			! empty( $this->upgrader->new_plugin_data['RequiresPHP'] ) &&
-			version_compare( phpversion(), $this->upgrader->new_plugin_data['RequiresPHP'], '<' )
+		if ( ! empty( $this->upgrader->new_plugin_data['RequiresPHP'] )
+			&& ! is_php_version_compatible( $this->upgrader->new_plugin_data['RequiresPHP'] )
 		) {
 			$error = sprintf(
 				/* translators: 1: Current PHP version, 2: Version required by the uploaded plugin. */
@@ -263,9 +263,8 @@ class Plugin_Installer_Skin extends WP_Upgrader_Skin {
 			$can_update       = false;
 		}
 
-		if (
-			! empty( $this->upgrader->new_plugin_data['RequiresWP'] ) &&
-			version_compare( $GLOBALS['wp_version'], $this->upgrader->new_plugin_data['RequiresWP'], '<' )
+		if ( ! empty( $this->upgrader->new_plugin_data['RequiresWP'] )
+			&& ! is_wp_version_compatible( $this->upgrader->new_plugin_data['RequiresWP'] )
 		) {
 			$error = sprintf(
 				/* translators: 1: Current WordPress version, 2: Version required by the uploaded plugin. */
diff --git a/src/wp-admin/includes/class-theme-installer-skin.php b/src/wp-admin/includes/class-theme-installer-skin.php
index 6850e8bbb2..ecbd6a7408 100644
--- a/src/wp-admin/includes/class-theme-installer-skin.php
+++ b/src/wp-admin/includes/class-theme-installer-skin.php
@@ -237,7 +237,8 @@ class Theme_Installer_Skin extends WP_Upgrader_Skin {
 		$table  = '<table class="update-from-upload-comparison"><tbody>';
 		$table .= '<tr><th></th><th>' . esc_html( __( 'Current' ) ) . '</th><th>' . esc_html( __( 'Uploaded' ) ) . '</th></tr>';
 
-		$is_same_theme = true; // Let's consider only these rows
+		$is_same_theme = true; // Let's consider only these rows.
+
 		foreach ( $rows as $field => $label ) {
 			$old_value = $current_theme_data->display( $field, false );
 			$old_value = $old_value ? $old_value : '-';
@@ -283,7 +284,9 @@ class Theme_Installer_Skin extends WP_Upgrader_Skin {
 		$blocked_message  = '<p>' . esc_html( __( 'The theme cannot be updated due to the following:' ) ) . '</p>';
 		$blocked_message .= '<ul class="ul-disc">';
 
-		if ( ! empty( $this->upgrader->new_theme_data['RequiresPHP'] ) && version_compare( phpversion(), $this->upgrader->new_theme_data['RequiresPHP'], '<' ) ) {
+		if ( ! empty( $this->upgrader->new_theme_data['RequiresPHP'] )
+			&& ! is_php_version_compatible( $this->upgrader->new_theme_data['RequiresPHP'] )
+		) {
 			$error = sprintf(
 				/* translators: 1: Current PHP version, 2: Version required by the uploaded theme. */
 				__( 'The PHP version on your server is %1$s, however the uploaded theme requires %2$s.' ),
@@ -295,7 +298,9 @@ class Theme_Installer_Skin extends WP_Upgrader_Skin {
 			$can_update       = false;
 		}
 
-		if ( ! empty( $this->upgrader->new_theme_data['RequiresWP'] ) && version_compare( $GLOBALS['wp_version'], $this->upgrader->new_theme_data['RequiresWP'], '<' ) ) {
+		if ( ! empty( $this->upgrader->new_theme_data['RequiresWP'] )
+			&& ! is_wp_version_compatible( $this->upgrader->new_theme_data['RequiresWP'] )
+		) {
 			$error = sprintf(
 				/* translators: 1: Current WordPress version, 2: Version required by the uploaded theme. */
 				__( 'Your WordPress version is %1$s, however the uploaded theme requires %2$s.' ),