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exercism fetch php isogram

Isogram

Determine if a word or phrase is an isogram.

An isogram (also known as a "nonpattern word") is a word or phrase without a repeating letter.

Examples of isograms:

The word isograms, however, is not an isogram, because the s repeats.

Making the Test Suite Pass

  1. Get PHPUnit.

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    % wget --no-check-certificate https://phar.phpunit.de/phpunit.phar
    % chmod +x phpunit.phar
    
  2. Execute the tests for an assignment.

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    % phpunit.phar wordy/wordy_test.php
    

Source

Wikipedia https://en.wikipedia.org/wiki/Isogram

Submitting Incomplete Solutions

It's possible to submit an incomplete solution so you can see how others have completed the exercise.