[thirdplace_]

php's composer[0] in 2012 had package namespaces

[0] https://getcomposer.org/

[lolinder]

Sorta—it looks like they were mostly just using that system by convention until May 2015, when they finally become enforced [0]. Still, that's a good one that I hadn't thought of, and they at least had the convention in place.

[0] https://github.com/composer/packagist/issues/163#issuecommen...