Graph Theory, the Facebook Platform and the new PHP SDK v5

This was the presentation I delivered over Skype to the Dayton Web Developers User Group.

http://www.meetup.com/dayton-web-developers/events/220726710/

Transcript

1. Sammy Kaye Powers July 1st, 2015 Platform, Graph theory, and the PHP SDK v5 the
2. Does not work @
3. Goal overview To get an
4. photo: harryritchies.com History lesson A slightly embellished
5. 1736 The year is
6. People wore Funny Bathing suits
7. riddles People solved
8. like this one
9. seven bridges
10. seven bridges Here
11. seven bridges Here Here
12. seven bridges Here Here Here
13. seven bridges Here Here Here Here
14. seven bridges Here Here Here Here Here
15. seven bridges Here Here Here Here Here Here
16. seven bridges Here Here Here Here Here Here There
17. cross all the bridges ONCE and only once?
35. enter Leonhard Euler
36. invents Graph theory
37. uses graph theory to Answer
38. No.
40. 268 Fast-forward years…
41. Facebook is Born! photo: bzd1 on Flickr
42. started in 1736 !?
43. Graph Theory What is
44. Describes rela tion ships
45. Guitars haveStrings
46. David likes pickles
47. to model relations Graphs we use
48. Graph? What kind of
49. This?
50. Nope This?
51. This?
52. Nope This?
53. This?
54. Nope This?
55. This?
56. Nope This?
57. Aw, kitty…
58. So what kind?
59. This
60. A simple graph
61. Dots
62. Dots Lines
63. Dots Lines
64. Nodes Lines
65. Nodes Lines a.k.a vertices
66. Nodes Lines a.k.a vertices
67. Nodes Edges a.k.a vertices
69. A “Thing”
70. the relation between the things
71. But… how does this help us understand Platform
72. Highly Relational Data graph theory is great for modeling
73. Traditional databases
74. Traditional databases users photos
75. Traditional databases users pivot photos
76. Traditional databases users pivot photos SELECT * FROM users JOIN pivot ON . . . JOIN photos ON . . .
77. Traditional databases users pivot photos SELECT * FROM users JOIN pivot ON . . . JOIN photos ON . . .
78. Traditional databases users pivot photos SELECT * FROM users JOIN pivot ON . . . JOIN photos ON . . .
79. Traditional databases users pivot photos SELECT * FROM users JOIN pivot ON . . . JOIN photos ON . . .
80. Graph databases
81. Graph databases John Jane HAS_PHOTO HAS_PHOTO HAS_PHOTO
82. To represent data uses graph theory
83. Social Graph It’s called the
84. Social Graph It’s called the
85. …as in the Graph Theory kind of graphs
86. Social Graph It’s called P.S. That’s the open graph protocol logo (a little different)
87. Describing this with Social Graph
90. Jordan
91. Jordan
92. Tatiana Jordan
93. Tatiana Jordan
94. Tatiana Jordan Kisses
95. Tatiana Jordan Kisses (instances of kissing)
96. Tatiana Jordan Kisses
97. Scott Tatiana Jordan Kisses
98. Scott Tatiana Jordan Kisses
99. Scott Tatiana Jordan stalks Kisses
100. Scott Tatiana Jordan stalks Kisses (instances of stalking)
101. Scott Tatiana Jordan Kisses stalks
102. Scott Tatiana Jordan stalks Kisses stalks
103. Scott Tatiana Jordan stalks Kisses stalks
104. Scott Tatiana Jordan stalks Kisses stalks people stalking people
105. “Facebooky” example
107. Social Graph (Facebook)
108. PHP Nerd (you) (Facebook) Social Graph
109. (you) (Facebook) ?? link ?? Social Graph PHP Nerd
110. (you) (Facebook) Graph API Social Graph PHP Nerd
111. (you) (Facebook) Graph API Hi! Social Graph PHP Nerd
112. (you) (Facebook) Graph API Social Graph PHP Nerd
113. <tangent>
114. AN API? What’s
115. application program interface
116. specifies how software components should interact
117. API Laravel $user = DB::table(‘users') ->where('name', ‘John') ->first();
118. Http protocol API’s over the
119. HTTP API over Host: silly.com GET /users/123
120. HTTP API over HTTP/1.1 200 OK Content-Type: application/json { “id”: 123, “name”: “Foo User” }
121. Web API’s These are
122. API Graph API The is a Web
123. </tangent>
124. PHP App Graph API Social Graph
125. Graph API Can I haz user 123? Social Graph PHP App
126. Graph API Can I haz user 123? Can I haz user 123? Social Graph PHP App
127. Graph API Yes: Social Graph PHP App
128. Graph API Yes: { name “Scott”, title: “Creeper” } Social Graph PHP App
129. Graph API tl;dr
130. https:// graph.facebook.com Lives here
131. /v2.3/foo-bar URL prefix versioned with a
132. Not RESTful so developers be like
133. OAuth 2.0 Uses a flavor of Don’t have to know!
134. Every “Thing”…
135. Users Every “Thing”…
136. comments Users Every “Thing”…
137. photos comments Users Every “Thing”…
138. photos comments Users Nodes Every “Thing”…
139. photos comments Users Nodes Every “Thing”… Yay! Nodes!
140. A photo A comment A User Nodes id:12..3 id:”45_90” id:45..90 Every “Thing”…
141. A little Weird ID’s are
142. id:972343284723449 A User A little Weird ID’s are
143. id:972343284723449 A User A little Weird ID’s are unsigned BIGINT VARCHAR or
144. id:972343284723449 A comment A User id:”45_90” A little Weird ID’s are
145. Graph API request/response
146. photo id:4590
147. photo id:4590 Host: graph.facebook.com GET /v2.3/4590
148. photo id:4590 Shouldn’t That Be /v2.3/photos/4590 ??? Host: graph.facebook.com GET /v2.3/4590
149. photo id:4590 HTTP/1.1 200 OK { "id": "4590", "name": "Plane!", . . . } Host: graph.facebook.com GET /v2.3/4590
150. Nodes a list of
151. comments Nodes a list of a list of
152. comments Nodes a list of Likes a list of a list of
153. photos comments Nodes a list of Likes a list of a list of a list of
154. photos comments Nodes a list of Likes Edges
155. /v2.3/node/edge come after Edges Nodes
156. photo id:4590
157. photo id:4590 comments
158. photo id:4590 GET /v2.3/4590/comments comments
159. photo id:4590 GET /v2.3/4590/comments HTTP/1.1 200 OK {"data": [ {"id": "4590_123", "message": "Pickles!"}, {"id": "4590_456", "message": "Turtles!"} ]} comments
160. Nodes have and fields edges
161. User Node fields edges - id - first_name - last_name - name - email * /albums /feed /photos /friends /picture *
162. Graph API endpoint reference developers.facebook.com/ docs/graph-api/reference
163. a note on permissions
164. Request GET /v2.3/123/turtles Graph API the
165. GET /v2.3/123/turtles be like Graph API
166. GET /v2.3/123/turtles be like Developers
167. B.T.Dubs… GET /v2.3/123/turtles
168. B.T.Dubs… GET /v2.3/123/turtles not a valid Edge
169. But! GET /v2.3/123/photos legit Edge
170. GET /v2.3/123/photos HTTP/1.1 200 OK {"data": []} empty Response
171. GET /v2.3/123/photos HTTP/1.1 200 OK {"data": []} empty Response
172. GET /v2.3/123/photos?debug=true {"__debug__": { "messages": [{ "message": "The field 'photos' is only accessible on the User object after the user grants the 'user_photos' permission.", "type": "warning" }]}} empty Response NEW!
173. GET /v2.3/123/photos user_photos Permission you’ll need the
174. GET /v2.3/123/photos login ask for permissions at (more on this later)
175. How do we access the Graph API
176. With a Facebook App
177. but first…
178. Become a Developer
179. developers.facebook.com
180. developers.facebook.com
181. developers.facebook.com
182. developers.facebook.com
183. Three important points
184. 1. Read the Platform Policy Three important points
185. 1. Read the Platform Policy 2. Read the Platform Policy Three important points
186. 1. Read the Platform Policy 2. Read the Platform Policy 3. Read the Platform Policy Three important points
188. Yay! Now you’re a Developer
189. Creating a Facebook App
194. App Dashboard
195. Yay! You created a Facebook app
196. App Dashboard
197. App Settings
198. Anatomy of a Facebook App
200. Core
201. Core (not an official term)
202. Platforms Platforms
203. Core Facebook App
205. ID
206. Name ID
207. Secret Name ID
208. Secret Name ID
209. App Name Created by you
210. App Name My Awesome App Example:
211. App Id Numeric identifier
212. App Id Created by Facebook
213. App Id Doesn’t have to be secret
214. App Id 111417252289428 Example:
215. App Secret Created by Facebook
216. App Secret Used to validate data from Facebook
217. Secret!! App Secret Don’t show it to anyone who doesn’t need it
218. App Secret
219. Platforms Facebook App
221. Website
222. Website Canvas
223. Website Canvas Mobile
224. Website Canvas Page Tab Mobile
225. Website Canvas Page Tab Mobile ConSole
226. App Settings
227. App Settings
228. App Settings
229. Compare with new app
230. Website To configure Facebook Login Log in with Facebook
231. Website To configure Facebook Login Log in with Facebook
232. CANVAS To configure canvas apps
233. like…
235. CANVAS Canvas is just <iframe src=“”></iframe>
236. Page Tab To configure Page tabs
238. Page Tab Page tab is just <iframe src=“”></iframe>
239. Mobile For native mobile apps
240. P.S.
241. Remember what’s under there?
242. Ah?
243. Ah?
244. Ah?
245. Secret!!
246. Cereally guys… Secret!!
247. One last thing before we code…
248. Understanding Facebook Login
249. Login Flow • User clicks on link • Facebook asks to approve • Access token is obtained *
250. All about Access Tokens
251. Access Tokens look like CAACEdEose0cBAJHwVI2DydR M65PZAld1a8r2efvhZBEruyv TTr87xjR85sIrFYeZBzsh5WZ CpO5wrVxZAO6JDmf3a5mL…
252. Access Tokens are sent with API requests GET /v2.3/123? access_token=CAACE…
253. Access Tokens Represent
254. Access Tokens Represent A User
255. Access Tokens Represent A User A Page
256. Access Tokens Represent A User An App A Page
257. Access Tokens Represent A User An App A Page Graph API
258. Access Tokens Represent A User An App A Page
259. App Access Tokens are concatenated from
260. App Access Tokens are concatenated from
261. App Access Tokens are concatenated from + |
262. App Access Tokens are concatenated from + | +
263. + | + Example: 123 appsecret
264. + | + 123|appsecret Example: 123 appsecret
265. + | + 123|appsecret Example: 123 appsecret But Wait!
266. + | + 123|appsecret Example: 123 appsecret
267. Access Tokens have two lifetimes
268. Short-Lived Access Tokens have two lifetimes (default)
269. Short-Lived Long-Lived Access Tokens have two lifetimes (default)
270. Short-Lived Long-Lived Access Tokens have two lifetimes (default) 2 hours
271. Short-Lived Long-Lived Access Tokens have two lifetimes (default) 60 Days 2 hours
272. Access Tokens request cycle Graph API
273. Access Tokens request cycle Graph API Can I haz Access Token?
274. Access Tokens request cycle Graph API Short-Lived
275. Access Tokens request cycle Graph API ThX, but… Can I HAz Longer? Short-Lived
276. Access Tokens request cycle Graph API Long-Lived
277. You haz Access token! …now send requests to the Graph API
278. Sound Complicated?
279. Sound Complicated? There’s An SDK For That
280. Facebook App Graph API So far… Facebook Dev Facebook Login
281. Facebook App Graph API So far… Facebook Dev Facebook Login ✓
282. Facebook App Graph API So far… Facebook Dev Facebook Login ✓ ✓
283. Facebook App Graph API So far… Facebook Dev Facebook Login ✓ ✓ ✓
284. Facebook App Graph API So far… Facebook Dev Facebook Login ✓ ✓ ✓ ✓
285. Facebook App Graph API So far… Facebook Dev Facebook Login ✓ ✓ ✓ ✓ Now What?
286. Facebook App Graph API So far… Facebook Dev Facebook Login ✓ ✓ ✓ ✓ Code Time!
287. Software development kits (SDK’s)
288. Two official SDK’s we care about
289. Two official SDK’s we care about php
290. Two official SDK’s we care about php Javascript
291. Two official SDK’s we care about php Javascript
292. v5 php SDK
293. php SDK v4.1 Do I even Need This?
294. OAuth 2.0 Remember… Facebook Login uses
295. Clients OAuth 2.0 PHP League $authUrl = $provider->getAuthorizationUrl(); $_SESSION['oauth2state'] = $provider->state; header('Location: '.$authUrl); // . . . $token = $provider->getAccessToken( 'authorization_code', [ 'code' => $_GET['code'] ]); $user = $provider->getUser($token); printf('Hello %s!', $userDetails->firstName);
296. Clients OAuth 2.0 Laravel 5 public function redirectToProvider() { return Socialize::with(‘facebook') ->redirect(); } public function handleProviderCallback() { $user = Socialize::with(‘facebook') ->user(); // $user->token; }
297. php SDK v5 • Signed request support • Easy-as-pie file uploads • Easy batch request support • Easy-peasy pagination • Graph Nodes as collections
298. php SDK v4.1 Heads up
299. php SDK v4.1 v5.0 === Totes Samezies
300. Install "require": { "facebook/php-sdk-v4": "~5.0@dev" } composer.json
301. Install "require": { "facebook/php-sdk-v4": "~5.0@dev" } composer.json
302. When will it be released??
303. When will it be released??
304. When will it be released?? 1996 Dev Started in
305. When will it be released?? 1996 Dev Started in 2011 Released in
306. When will it be released?? 1996 Dev Started in 2011 Released in 15 Years
307. Usage
308. Facebook\Facebook() Usage all the things does
309. $fb Usage we instantiated as
310. Facebook\Facebook() • Handles fall-back config • Factory for helpers & entities • Helps with HTTP requests • Container to inject custom deps
311. $fb = new Facebook\Facebook([ /* */ ]); Configuration
312. $fb = new Facebook\Facebook([ 'app_id' => 'app-id', 'app_secret' => 'secret', ]); Configuration
313. $fb = new Facebook\Facebook([ 'app_id' => 'app-id', 'app_secret' => 'secret', ]); SECRET! better: use env vars Configuration
314. $fb = new Facebook\Facebook(); if you have env vars FACEBOOK_APP_ID FACEBOOK_APP_SECRET and Configuration
315. $fb = new Facebook\Facebook([ 'app_id' => 'app-id', 'app_secret' => ‘secret', 'default_graph_version' => 'v2.3', ]); Configuration
316. Authentication
317. Authentication Facebook Login
318. login from redirect $helper = $fb->getRedirectLoginHelper(); $login_link = $helper-> getLoginUrl(‘https://foo.com/fb'); echo '<a href="' . $login_link . '">'. 'Log in!</a>'; Route: / Authentication
319. callback URL Route: /facebook/login $token = $helper->getAccessToken(); Authentication
320. callback URL Route: /facebook/login throws Facebook\Exceptions \FacebookSDKException $token = $helper->getAccessToken(); Authentication
321. callback URL use Facebook\Exceptions\FacebookSDKException; try { $token = $helper->getAccessToken(); } catch (FacebookSDKException $e) { dd(‘Error:' . $e->getMessage()); } Route: /facebook/login Authentication
322. $token once you obtain user is logged in! :) (sort of…) Authentication
323. Store it for later… session Database $token Authentication
324. Requests & Responses
325. Requests & Responses GET POST DELETE $fb->get(); PUT & PATCH $fb->post(); $fb->delete();
326. get(), post(), delete() Facebook Request
327. get(), post(), delete() Facebook Request Facebook Client
328. get(), post(), delete() Facebook Request Facebook Client Graph API
329. get(), post(), delete() Facebook Request Facebook Client Graph API
330. get(), post(), delete() Facebook Request Facebook Client Graph API Facebook Response
331. Request & Response GET $fb->get();
332. $res = $fb->get(‘/4’, $token); $fb = Facebook\Facebook() Request & Response GET
333. $res = $fb->get(‘/4’, $token); User node id $fb = Facebook\Facebook() Request & Response GET
334. $res = $fb->get(‘/4’, $token); Can set Default $fb = Facebook\Facebook() Request & Response GET
335. $fb-> setDefaultAccessToken($token); $res = $fb->get(‘/4’); Set As Default $fb = Facebook\Facebook() Request & Response GET
336. $fb-> setDefaultAccessToken($token); $res = $fb->get(‘/4’); don’t need $fb = Facebook\Facebook() Request & Response GET
337. $res = $fb->get(‘/4? fields=id,name,email’); $fb = Facebook\Facebook() Request & Response GET
338. $res = $fb->get(‘/4’); Facebook\FacebookResponse() Facebook Response $fb = Facebook\Facebook() Request & Response GET
339. Response Data Handling the Facebook Response
340. $a = $res->getHttpStatusCode(); $b = $res->getHeaders(); $c = $res->getBody(); $d = $res->getDecodedBody(); Facebook Response Response Data $res = Facebook\FacebookResponse()
341. $data = $res->getBody(); Facebook Response Response Data Plain- old string $res = Facebook\FacebookResponse()
342. $data = $res->getDecodedBody(); Facebook Response Response Data Plain- old array(); $res = Facebook\FacebookResponse()
343. Response Collections Graph Nodes
344. Response Collections Graph Nodes YAY! NoDES!
345. $node = $res->getGraphNode(); $res = Facebook\FacebookResponse() Facebook Response Response Data Graph Node
346. Facebook\ GraphNodes\ GraphNode() extends from a collection Graph Node
347. GraphUser GraphPage GraphAlbum Facebook\GraphNodes\GraphNode() sub nodes of namespace: Facebook\GraphNodes $res->getGraphUser(); $res->getGraphPage(); $res->getGraphAlbum(); Graph Node Graph Nodes
348. Graph Nodes fields edges - id - first_name - last_name - name - email * /albums /feed /photos /friends /picture * Graph Node
349. $id = $userNode->getId(); $name = $userNode->getName(); $partner = $userNode->getSignificantOther(); Facebook\GraphNodes\GraphUser() Graph Nodes Graph Node
350. $id = $userNode->getId(); $name = $userNode->getName(); $partner = $userNode->getSignificantOther(); Facebook\GraphNodes\GraphUser() Graph Nodes Graph Node GraphUser Node
351. Graph Edges
352. $res = $fb->get(‘/me/photos’); $fb = Facebook\Facebook() Graph Edges
353. $res = $fb->get(‘/me/photos’); Facebook Response $fb = Facebook\Facebook() Graph Edges
354. $res = $fb->get(‘/me/photos’); $fb = Facebook\Facebook() Graph Edges $node = $res->getGraphObject();
355. $res = $fb->get(‘/me/photos’); $fb = Facebook\Facebook() Graph Edges $node = $res->getGraphObject(); Nope
356. $res = $fb->get(‘/me/photos’); $fb = Facebook\Facebook() Graph Edges $edge = $res->getGraphEdge(); GraphEdge
357. $nextEdge = $fb->next($edge);
 $prevEdge = $fb->previous($edge); $edge = Facebook\GraphNodes\GraphEdge() Graph Edges GraphEdge Pagination Example
358. $nextEdge = $fb->next($edge);
 $prevEdge = $fb->previous($edge); $edge = Facebook\GraphNodes\GraphEdge() Graph Edges GraphEdge Pagination Example Another GraphEdge
359. Request & Response POST $fb->post();
360. $data = [ ‘message’ => ‘Hi from Dayton Web Dev!’, ]; $res = $fb->post(‘/me/feed’, $data); $fb = Facebook\Facebook() Request & Response POST
361. Request & Response DELETE $fb->delete();
362. $res = $fb->delete(‘/123’); $fb = Facebook\Facebook() Request & Response DELETE
363. Integration Advanced
364. $fb = new Facebook\Facebook([ ‘persistent_data_handler' => $myPersistentHandler, ]); Advanced Integration
365. $fb = new Facebook\Facebook([ ‘persistent_data_handler' => $myPersistentHandler, ]); Advanced Integration instance of PersistentDataInterface
366. Injectable Persistent Data Storage: `PersistentDataInterface` Injectable HTTP Client: `FacebookHttpClientInterface` Injectable CSPRNG: `PseudoRandomStringGeneratorInterface` Injectable URL detection: `UrlDetectionInterface` Advanced Integration
367. File Uploads
368. $data = [
 'message' => 'My awesome photo.',
 'source' => $fb->fileToUpload('/my/photo.jpg'),
 ]; $res = $fb->post(‘/me/feed’, $data); $fb = Facebook\Facebook() File Uploads Photo example
369. $data = [ 'title' => 'My video’,
 'description' => 'My awesome video.',
 'source' => $fb->videoToUpload('/my/photo.mp4'),
 ]; $res = $fb->post(‘/me/feed’, $data); $fb = Facebook\Facebook() File Uploads Video example
370. *Phew* time for a kitty break
371. SDK Javascript Sharing with the
372. Javascript SDK installation <script> window.fbAsyncInit = function() { FB.init({ appId : 'your-app-id', xfbml : true, version : 'v2.3' }); }; (function(d, s, id){ var js, fjs = d.getElementsByTagName(s)[0]; if (d.getElementById(id)) {return;} js = d.createElement(s); js.id = id; js.src = "//connect.facebook.net/en_US/sdk.js"; fjs.parentNode.insertBefore(js, fjs); }(document, 'script', 'facebook-jssdk')); </script> copy/paste before developers.facebook.com/docs/javascript/quickstart </body>
373. Javascript SDK installation <script> window.fbAsyncInit = function() { FB.init({ appId : 'your-app-id', xfbml : true, version : 'v2.3' }); }; (function(d, s, id){ var js, fjs = d.getElementsByTagName(s)[0]; if (d.getElementById(id)) {return;} js = d.createElement(s); js.id = id; js.src = "//connect.facebook.net/en_US/sdk.js"; fjs.parentNode.insertBefore(js, fjs); }(document, 'script', 'facebook-jssdk')); </script> developers.facebook.com/docs/javascript/quickstart This
374. Javascript SDK installation FB.init({ appId : '{your-app-id}', cookie : true, version : 'v2.3' });
375. Javascript SDK installation FB.init({ appId : '{your-app-id}', cookie : true, version : 'v2.3' });
376. Javascript SDK share dialog FB.ui({ method: 'share', href: ‘http://foo.com' }, function(response){});
377. Javascript SDK share dialog FB.ui({ method: 'share', href: 'http://foo.com' }, function(response){});
378. Javascript SDK share dialog
379. Javascript SDK share dialog Customize?
380. Javascript SDK share dialog FB.ui({ method: 'share', href: 'http://foo.com' }, function(response){});
381. meta tags Open Graph
382. meta tags <meta property=“og:url" content="http://foo" /> <meta property=“og:title" content=“Foo Site" /> <meta property=“og:description" content=“Foo description of bar" /> <meta property=“og:image" content=“http://foo.c/bar.jpg” /> Open Graph
383. meta tags <meta property=“og:url" content="http://foo" /> <meta property=“og:title" content=“Foo Site" /> <meta property=“og:description" content=“Foo description of bar" /> <meta property=“og:image" content=“http://foo.c/bar.jpg” /> Open Graph
384. meta tags <meta property=“og:url" content="http://foo" /> <meta property=“og:title" content=“Foo Site" /> <meta property=“og:description" content=“Foo description of bar" /> <meta property=“og:image" content=“http://foo.c/bar.jpg” /> Open Graph
385. meta tags <meta property=“og:url" content="http://foo" /> <meta property=“og:title" content=“Foo Site" /> <meta property=“og:description" content=“Foo description of bar" /> <meta property=“og:image" content=“http://foo.c/bar.jpg” /> Open Graph
386. Learn? What did we
387. Before you cAme
388. Know You prolly didn’t
389. Know You prolly didn’t Graph API
390. Know You prolly didn’t Graph API Facebook Developer
391. Know You prolly didn’t Facebook App Graph API Facebook Developer
392. Know You prolly didn’t Facebook App Graph API Facebook Developer Facebook Login
393. Know You prolly didn’t Facebook App Graph API Facebook Developer Facebook Login Access Tokens
394. Know You prolly didn’t Facebook App Graph API Facebook Developer Facebook Login Access Tokens php SDK
395. Know You prolly didn’t Facebook App Graph API Facebook Developer Facebook Login Access Tokens Javascript SDK php SDK
396. Now Look at you!
397. Now Look at you! Yay! Learning!
398. Learn! So much more to • Graph API • User Permissions • App Canvas • Page Tabs • Test Users • Test Apps • And more!
399. Next Steps Create an app & play!
400. Getting Involved
401. Getting Involved https://github.com/facebook/facebook-php-sdk-v4
403. Fosco Marotto
404. THANKS! Sammy Kaye Powers @SammyK SammyK.me Host of @PHPRoundtable @ChiPHPUG West Coast Swing