Title: TokenUsage::toArray
Published: May 20, 2026

---

# TokenUsage::toArray(): WordPressAiClientResultsDTOTokenUsageArrayShape

## In this article

 * [Return](https://developer.wordpress.org/reference/classes/wordpress-aiclient-results-dto-tokenusage/toarray/?output_format=md#return)
 * [Source](https://developer.wordpress.org/reference/classes/wordpress-aiclient-results-dto-tokenusage/toarray/?output_format=md#source)
 * [Changelog](https://developer.wordpress.org/reference/classes/wordpress-aiclient-results-dto-tokenusage/toarray/?output_format=md#changelog)

[ Back to top](https://developer.wordpress.org/reference/classes/wordpress-aiclient-results-dto-tokenusage/toarray/?output_format=md#wp--skip-link--target)

{@inheritDoc}

## 󠀁[Return](https://developer.wordpress.org/reference/classes/wordpress-aiclient-results-dto-tokenusage/toarray/?output_format=md#return)󠁿

 WordPressAiClientResultsDTOTokenUsageArrayShape

## 󠀁[Source](https://developer.wordpress.org/reference/classes/wordpress-aiclient-results-dto-tokenusage/toarray/?output_format=md#source)󠁿

    ```php
    public function toArray(): array
    {
        $data = [self::KEY_PROMPT_TOKENS => $this->promptTokens, self::KEY_COMPLETION_TOKENS => $this->completionTokens, self::KEY_TOTAL_TOKENS => $this->totalTokens];
        if ($this->thoughtTokens !== null) {
            $data[self::KEY_THOUGHT_TOKENS] = $this->thoughtTokens;
        }
        return $data;
    }
    ```

[View all references](https://developer.wordpress.org/reference/files/wp-includes/php-ai-client/src/results/dto/tokenusage.php/)
[View on Trac](https://core.trac.wordpress.org/browser/tags/7.0/src/wp-includes/php-ai-client/src/Results/DTO/TokenUsage.php#L126)
[View on GitHub](https://github.com/WordPress/wordpress-develop/blob/7.0/src/wp-includes/php-ai-client/src/Results/DTO/TokenUsage.php#L126-L133)

## 󠀁[Changelog](https://developer.wordpress.org/reference/classes/wordpress-aiclient-results-dto-tokenusage/toarray/?output_format=md#changelog)󠁿

| Version | Description | 
| [0.1.0](https://developer.wordpress.org/reference/since/0.1.0/) | Introduced. |

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