Fetching source

The names of the directories of course change depending on which version of PHP you are installing

➜  cd ~/php/source
➜  wget https://downloads.php.net/~ramsey/php-8.1.0beta2.tar.gz
➜  tar xzf php-8.1.0beta2.tar.gz
➜  rm php-8.1.0beta2.tar.gz