Allow box_values() to accept string input

[Copilot]

CSS_Utility::box_values() passed its $box argument directly to array_map(), causing a fatal error when a string (e.g. a raw CSS value like '10px') was provided instead of an array.

Changes

• inc/css/class-css-utility.php — Added an early return in box_values() when $box is not an array; updated @param type to array|string.
• tests/test-css.php — Added test_box_values_string_input() covering string pass-through cases.

public static function box_values( $box, $box_default = array() ) {
    if ( ! is_array( $box ) ) {
        return $box; // string values returned as-is
    }
    // existing array logic...
}

Original prompt

---

This section details on the original issue you should resolve

<issue_title>Allow box_values() to use a string input without requiring an array</issue_title>
<issue_description>## Problem
In the box_values method, when $box is a string, the current implementation expects $box to always be an array. This creates unnecessary type constraints and can break scenarios where a string is valid input.

Suggested Fix

Update box_values to use the following logic:

if ( ! is_array( $box ) ) {
    return $box;
}

This way, when $box is a string, it will simply be returned, making the function more robust.

Code Reference

public static function box_values( $box, $box_default = array() ) {
    if ( ! is_array( $box ) ) {
        return $box;
    }
    // existing logic here
}

Expected Behavior

• If $box is a string, return the string as is.
• If $box is an array, continue with the current array logic.

Benefit

This change improves compatibility and prevents errors when a string is given as input.</issue_description>

Comments on the Issue (you are @copilot in this section)

• Fixes Allow box_values() to use a string input without requiring an array #2760

---

📍 Connect Copilot coding agent with Jira, Azure Boards or Linear to delegate work to Copilot in one click without leaving your project management tool.

[pirate-bot]

Bundle Size Diff

Package	Old Size	New Size	Diff
Animations	271.64 KB	271.64 KB	0 B (0.00%)
Blocks	1.54 MB	1.54 MB	0 B (0.00%)
CSS	100.76 KB	100.76 KB	0 B (0.00%)
Dashboard	198.36 KB	198.36 KB	0 B (0.00%)
Onboarding	160.8 KB	160.8 KB	0 B (0.00%)
Export Import	97.73 KB	97.73 KB	0 B (0.00%)
Pro	407.08 KB	407.08 KB	0 B (0.00%)

[pirate-bot]

Plugin build for 4a32002 is ready 🛎️!

• Download Otter – Page Builder Blocks & Extensions for Gutenberg - Production ~ Development
• Download Otter Pro - Production ~ Development
• Download Blocks Animation - Production ~ Development
• Download Blocks CSS - Production ~ Development
• Download Blocks Export Import - Production ~ Development

[pirate-bot]

E2E Tests

Playwright Test Status:

Performance Results

serverResponse: {"q25":413.7,"q50":416.6,"q75":422.7,"cnt":10}, firstPaint: {"q25":415.4,"q50":516.3,"q75":534.4,"cnt":10}, domContentLoaded: {"q25":1541.7,"q50":1551,"q75":1566.6,"cnt":10}, loaded: {"q25":1542.1,"q50":1551.35,"q75":1566.9,"cnt":10}, firstContentfulPaint: {"q25":3221.2,"q50":3240.75,"q75":3254,"cnt":10}, firstBlock: {"q25":6590.9,"q50":6637.9,"q75":6792.9,"cnt":10}, type: {"q25":13.01,"q50":13.36,"q75":13.55,"cnt":10}, typeWithoutInspector: {"q25":11.53,"q50":12.01,"q75":12.66,"cnt":10}, typeWithTopToolbar: {"q25":15.77,"q50":16.24,"q75":16.66,"cnt":10}, typeContainer: {"q25":7.25,"q50":8.01,"q75":8.49,"cnt":10}, focus: {"q25":50.47,"q50":53.24,"q75":54.61,"cnt":10}, inserterOpen: {"q25":15.78,"q50":17.18,"q75":19.9,"cnt":10}, inserterSearch: {"q25":5.4,"q50":5.52,"q75":5.58,"cnt":10}, inserterHover: {"q25":2.31,"q50":2.45,"q75":2.68,"cnt":20}, loadPatterns: {"q25":1054.09,"q50":1075.71,"q75":1128.99,"cnt":10}, listViewOpen: {"q25":80.34,"q50":85.47,"q75":96.96,"cnt":10}