themattharris/tmhOAuth — pull request #29 by samwierema (2012-02-23 17:18:38+00:00)
Title: Replacing function_exists() with is_callable() allows for anonymous functions

Replacing function_exists() with is_callable() allows for anonymous functions in PHP >= 5.3. For example:

```php
$tmhOAuth->streaming_request('POST', $method, $params, function($data, $length, $metrics) {
// Process the stream
});
```