This is the first article on this my new blog. So I will cover some Hello World! examples for PHP and Python3. Enjoy!
Traditionally the first example anyone makes in a new programming language is the popular Hello World! example. So I thought to my self: "let's do some of these in my first article". So let's get to it!
In a Hello World! example you simply want to print out Hello World!. Thats it!
Preparation - Vagrant
If you are not on a Debian based Linux system then you might want to use Vagrant, which is a nice and simple way to get a predefined virtual server up and running. I am only going to show installation instructions for Debian based Linux systems.
If you have Vagrant installed you can use the following commands to setup your virtual server and start playing around.
cd path/to/working/directory vagrant init ubuntu/xenial64 vagrant up vagrant ssh
Thats it. Three little commands and you have a running ubuntu/xenial64 virtual server running. By running
vagrant ssh we login to the virtual server. That should do the trick.
On ubuntu you can run the following command from a terminal to install PHP.
sudo apt-get install php -y
Now you can use the php command in your terminal to run your our first "Hello World!" example.
php -r "echo 'Hello World!';"
This should print the following line on your terminal.
You did it! This was your first example. But we can go further. Open up a new file, with a
.php file ending and puth the following code into it.
<?php echo "Hello World!";
Now run your first PHP programm with the following command from your terminal.
This also should print out
Hello World! on your terminal.
On ubuntu you can run the following command from a terminal to install python.
sudo apt-get install python3 -y
Now you can enter the interactive python mode from a terminal by typing in
python. Go ahead and enter the following code.
This to should print out
Hello World!. Yey!
Let's go further! Open a new file with the file ending
.py and enter the following code.
#!/usr/bin/env python print("Hello World!")
Now run your first python programm with the following command from your terminal.
You can guess what this one should print out right? Yes,
You did it! You just learned two programming languages ... some how 😉
As you can see, on my blog you will find a lot about PHP, Python, Linux/Ubuntu and everything else you can use as a webdeveloper. If you like my content, follow me on twitter so you never miss a post or tweet.