pdo_duckdb: DuckDB for PHP, Behind the PDO API You Already Know

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Update, June 21 2026. This post went up at 0.2.1. Since then 0.3.0 and 0.4.0 have shipped, and one claim below is already out of date: result streaming, which I describe as the next thing on the list, now exists. Set PDO::DUCKDB_ATTR_UNBUFFERED and a large SELECT streams row by row instead of buffering. Also new since publication: DuckDB config options on the DSN or through PDO::DUCKDB_ATTR_CONFIG…

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