>There must be some other advantages over this badly picked function names.
Very easy to learn
Very easy to learn
The issue is, that people often compare apples and oranges here:
Good, SOLID, and well-architectured OOP PHP applications (YII, Zend) are far harder to learn then Django or Rails. It is unfair to compare the "hacking of a free WordPress theme" to "setting up and deploying a full MVC application in Rails". When you compare similar stacks, PHP is, nearly always, the harder-to-learn choice.
A simple, hacked-together sequential script serving a webpage is, by far, easier in both Python and Ruby then in PHP. If only for the fact that both Python and Ruby come with decent, built-in webservers. PHP has gotten this in the latest release only, but before, a fair comparison would be: a PHP app requires you to erect a full LAP-stack, whereas a python-script could be serving pages on the most barebone machine with Python installed.
Again, the very beginning of PHP might seem easier to learn, because in practice, a lot of the infra is there and a lot of groundwork is already done (LAMP-stacks come for almost free; Passenger or Fastcgi not so much, allthough they are there). And then, when going a bit further then "removing these two menu-items in a WP-theme", when moving into the area of proper designed, maintainable webstacks, PHP is a lot harder to learn. And when moving one step further, e.g. including stuff like asyncronous workers, long-running-threads, commandline-tools, and so forth, PHP is often even completely unable to cope, but in the very least, proves a really hard and cumbersome tool.
It's not PHP, it's mod_php that makes PHP so easy to use.
With PHP 5.4+: `php -S 0.0.0.0:8000`, just as useful as SimpleHTTPServer.
And I wasn't aware of Ruby coming with a web server. I know of WEBrick for Rails -- but is there a standard module that Ruby ships with that's similar to the above PHP and Python servers?
I explicitely mentioned that the latest release of PHP comes with the built-in -S server. But that before this, it was always either install *AMP of some variation, which is, frankly a lot harder. And even now, Whereas Rails requires a few commanline commands, a CMS like Drupal still needs quite some fiddling to get it ro run on your localhost. (Source: I have been professional Drupal trainer for years)
But let me note that neither three of these servers are anything good for production. But, for small (internal) projects, `SimpleHTTPServer`, `Webrick` or even `php -S` might suffice, especially when behind a reverse proxy. Yet of all three, Webrick is especially slow, and php-s is especially memory-leaking and unstable.