[ RC-bug raised by the maintainer to get the package removed from
  testing. ]

I took over the maintenance of this package over ten years ago, and it
has currently no more dependencies in testing (well, the last dependency
is marked for autoremoval from testing in three weeks). Let’s not
release Trixie with a useless package (unless someone disagrees before
the freeze), and let’s get it removed from Debian once no package
depends on it.

Regards,

taffit

This package could be used by matomo-component-decompress instead of embedding it's own copy.
But the source should then be changed to a more recent fork.

See: https://sources.debian.org/src/matomo-component-decompress/3.0.0-1/libs/PclZip/pclzip.lib.php/
See: https://github.com/matomo-org/component-decompress/issues/23

Forget my last comment, please go ahead and file an RM for php-pclzip.