I would like to know if it would be fine to deprecate pg_put_line. Reasoning is PQPutLine is part of the obsolete list of calls for COPY purpose <https://www.postgresql.org/docs/current/libpq-copy.html#LIBPQ-PQPUTLINE> since the PostgreSQL protocol 3.0 version (supported since postgresql 7.4 released about 20 years ago, see New client-to-server protocol regarding COPY <https://www.postgresql.org/docs/7.4/release-7-4.html>).
Related PR <https://github.com/php/php-src/pull/14250>. Cheers
