Update problem_1.php

Riga 28: "$multiple = array();" e non "$multiple = [];".
Merge pull request #3 from arturu/patch-1

Update problem_1.php
Updating README.md
PHP Procedure for Problem 2

PLEASE NOTE
This is the first try, not the final version. Do not blame me for the
quality of the code…
Problem 2 PHP procedure improved
README.md typo.

Actually nobody notice this? LoL
Problem_1 solved in javascript with functional style
Removed total from output
Problem2 solved in JavaScript
Improved javascript solution for problem 2
added problem 4 python solution
Merge pull request #5 from benfa94/master

python solution for problem 4 added.
Merge pull request #4 from Takeno/master

Problem_1 solved in javascript with functional style Added. Thanks :)
Improved PHP Procedure for Fibonacci.
Fixed Typo
Fixed variable Typo
Remove unusued Include

I still don't know how to improve this...
Problem 3 solved in JavaScript and Python
Merge pull request #6 from Takeno/master

Problem 2 and 3 solved in JavaScript and Python

Wow that's huge. :+1:
Python Problem 2