plencovich

See

• https://en.wikipedia.org/wiki/Great-circle_distance#Formulas
• http://www.geodatasource.com/developers/php
• http://www.codexworld.com/distance-between-two-addresses-google-maps-api-php/
• https://stackoverflow.com/questions/10053358/measuring-the-distance-between-two-coordinates-in-php

JavaScript

plencovich

Source: https://github.com/bcit-ci/CodeIgniter/wiki/Compress-HTML-output

To remove useless whitespace from generated HTML, except for Javascript see [Regex Source] or just replace the $re value:

$re = '%# Collapse ws everywhere but in blacklisted elements.
        (?>             # Match all whitespaces other than single space.
          [^\S ]\s*     # Either one [\t\r\n\f\v] and zero or more ws,
        | \s{2,}        # or two or more consecutive-any-whitespace.
        ) # Note: The remaining regex consumes no text at all...

plencovich

Better Audio Player (Light Version)

A Pen by Bradley Treweek on CodePen.

License.