anthropics-claude-api/php/claude-api/files-api.md

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Files API - PHP

Files API

Out of beta. In current SDKs $client->beta->files has breaking shape changes from previous versions, matching the stable $client->files - migrate per the Files API row in shared/live-sources.md. Example below predates this.

$file = $client->beta->files->upload(
    file: fopen('upload_me.txt', 'r'),
    betas: ['files-api-2025-04-14'],
);
// Reference $file->id as a file content block on ->beta->messages->create().