PHP OAuth for LinkedIn WITHOUT Using PECL or Zend

Work-related plea: [Has anyone gotten LinkedIn’s API to play nice with PHP5 without the use of the PECL OAuth library or Zend’s?][link]

To the non-coders here: These are all Things, I promise. I did not make them up.

[link]: http://developer.linkedin.com/thread/1375?tstart=0 “LinkedIn Developer Network: PHP OAuth WITHOUT Using PECL or Zend?”