Sum Of Multiples in PHP
Given a number, find the sum of all the multiples of particular numbers up to but not including that number.
1  exercism fetch php sumofmultiples

Sum Of Multiples
Given a number, find the sum of all the unique multiples of particular numbers up to but not including that number.
If we list all the natural numbers below 20 that are multiples of 3 or 5, we get 3, 5, 6, 9, 10, 12, 15, and 18.
The sum of these multiples is 78.
Running the tests

Go to the root of your PHP exercise directory, which is
<EXERCISM_WORKSPACE>/php
. To find the Exercism workspace run1
% exercism debug  grep Workspace

Get PHPUnit if you don't have it already.

Execute the tests:
1
% ./phpunit.phar sumofmultiples/sumofmultiples_test.php
Source
A variation on Problem 1 at Project Euler http://projecteuler.net/problem=1
Submitting Incomplete Solutions
It's possible to submit an incomplete solution so you can see how others have completed the exercise.