[adamsilverstein]

Follow up to #9870 (comment) - thanks @dmsnell for the suggestion.

Claude made the change @dmsnell sketched out, summary below:

sanitize_comment_statuses() made five passes over the input (wp_parse_list, array_map, array_unique, array_filter, array_values), building a new array on each one. This replaces them with a single loop that sanitizes, skips empty values, and dedupes as it goes.

Behavior should be identical. The loop still keeps a literal '0', since held comments store comment_approved = '0', and still drops non-scalar array entries the way wp_parse_list() did. Non-array input still goes through wp_parse_list(), so comma and space separated strings work the same as before.

The data provider gets three new cases: values that only collide after sanitizing (Approve, APPROVE), empty values inside an array, and non-scalar entries.

Testing

• Run npm run test:php -- --filter test_sanitize_comment_statuses (not run locally yet, leaning on CI for the PHPUnit run).
• PHPCS passes on both changed files.
• The old and new implementations were run side by side in a standalone PHP script over 15 inputs (the provider cases plus booleans, ints, padded strings and an empty array) and returned the same result for every one.

Trac ticket: https://core.trac.wordpress.org/ticket/63982

Use of AI Tools

AI assistance: Yes
Tool(s): Claude Code
Model(s): Claude Opus 5.5
Used for: Claude Code wrote copied the code, wrote tests and this description, starting from the reviewer's snippet. I reviewed.

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This Pull Request is for code review only. Please keep all other discussion in the Trac ticket. Do not merge this Pull Request. See GitHub Pull Requests for Code Review in the Core Handbook for more details.

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Commit message

REST API: Sanitize comment statuses in a single pass.

Replace the chain of array functions in `WP_REST_Comments_Controller::sanitize_comment_statuses()` with one loop to avoid building intermediate arrays. Behavior is unchanged.

Follow-up to [64494].

Props dmsnell, westonruter.
See #63982.

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Props adamsilverstein, westonruter, dmsnell.

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[adamsilverstein]

Code-wise this looks good to me.

[dmsnell]

Claude Code wrote the code

not that I really care, but it appears that Claude copied my code verbatim, which is more like “Claude Code copy/pasted the code” 🤷‍♂️

[adamsilverstein]

Claude Code wrote the code

not that I really care, but it appears that Claude copied my code verbatim, which is more like “Claude Code copy/pasted the code” 🤷‍♂️

Description updated.