why not 7.4
Try the tarball. If it didnt work you can compile it yourself I thought they provide binaries like they do in windows.php.net You should compile it anyways or for ubuntu maybe finding a ppa that has 7.0.33 Compilation process is very easy. Its documented in php manual
send compile flags
And btw php's versioning works kinda like semver. You can use latest 7.4 instead
Composer has a problem with that. Especially when I want to init
Обсуждают сегодня