exercism fetch php accumulate


Implement the accumulate operation, which, given a collection and an operation to perform on each element of the collection, returns a new collection containing the result of applying that operation to each element of the input collection.

Given the collection of numbers:

And the operation:

Your code should be able to produce the collection of squares:

Check out the test suite to see the expected function signature.


Keep your hands off that collect/map/fmap/whatchamacallit functionality provided by your standard library! Solve this one yourself using other basic tools instead.

Running the tests

  1. Go to the root of your PHP exercise directory, which is <EXERCISM_WORKSPACE>/php. To find the Exercism workspace run

    % exercism debug | grep Workspace
  2. Get PHPUnit if you don't have it already.

    % wget --no-check-certificate https://phar.phpunit.de/phpunit.phar
    % chmod +x phpunit.phar
  3. Execute the tests:

    % ./phpunit.phar accumulate/accumulate_test.php


Conversation with James Edward Gray II https://twitter.com/jeg2

Submitting Incomplete Solutions

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