Archive for Adam Trachtenberg

author photo

Adam Trachtenberg is the Director of the LinkedIn Developer Network, where he oversees developer relations and marketing for the LinkedIn Platform. Before LinkedIn, Adam worked at eBay in platform product management and marketing. Even earlier, he co-founded Student.Com and Adam is the author of PHP Cookbook and Upgrading to PHP 5. He lives in San Francisco.

eBay Category of the Week: Tokens: Transit

I just found out we have a category called “Exonumia.” That was news to me, as I didn’t even know there was a word called exonumia.

You probably use exonumia on a regular basis, without even knowing. What is it? To quote Wikipedia:

Items such as bus tokens (transportation tokens), bar or pub tokens, and casino tokens or chips are some of the more common forms of exonumia.

We have a number of Exonumia subcategories. I think my favorite is “Transit Tokens”.

But “So-Called Dollars” is not a bad one, either.

I love eBay.

Fall 2006 PHP Speaking Calendar

I have a number of PHP related speaking gigs coming up:

Stupid PHP one liners: Google calc

A long time ago, I wrote a two line hack that let you use Google as a command line calculator. It eventually ended up in the 2nd and 3rd editions of Google Hacks.

I don’t know what caused by to look at that code again, but here’s the one line version:

print str_replace('<font size=-2> </font>', ',' ,
  preg_replace('(.+<b>.+= (.+?)</b>.+)s', '$1',
    file_get_contents('' .
      urlencode(join(' ', array_splice($argv, 1)))))) . "\n";

View maps in Google search results

I came across a new (to me) feature of Google today: inline maps.

eBay Developer Program: Needs Biz Dev Techie

The group at eBay where I work, the Developers Program, is looking to hire a biz dev person that’s also at least a little techie.

Here’s the key requirements:

  • Work with eBay’s Internet Marketing and Product Management teams to define and enable third-party development of applications to drive activity to
  • Evangelize and communicate the benefits of developing on the eBay Platform using our Application Programming Interface (API) and other web services to third parties (primarily affiliates) through conference appearances, one-on-one interaction and personal innovation.
  • Maintain and continue to develop/streamline the platform access infrastructure for third parties.

And here’s the full description. (If that link doesn’t work, go to and search for job “12439BR”.)

If you’re interested, please e-mail me. The domain is “” and my username is “atrachtenberg”.

Dirty Secrets of OSCON 2006

Under the heading of better two weeks late than never, here are my slides for my OSCON talk Dirty Secrets of PHP 5’s ext/soap Extension.

As usual, I had a great time at the show. It was fun to see all my old friends and make new ones.

eBay Dev Con 2006 Wrap up

Now that the eBay Developers Conference and eBay Live! 2006 are complete, I should really do a nice write up. However, right now I’m forced to only leave you with a very nice set of pictures and the many posts from our wonderful conference blog.

eBay DevCon 2006

The eBay DevCon 2006 is on! I’m blogging it over at our team blog. Come by and check it out.