[dev] extensionExists() modification?

[Chuck Hagenbuch]

Quoting Michael M Slusarz <slusarz at bigworm.colorado.edu>:

> Agreed, especially since extension_exists() is soooo slow.

Is function_exists() any better? If so, do we want to reconsider the pedantic
correctness of checking for the extension vs. the potential speed benefits of
checking for a known function?

-chuck

--
"Regard my poor demoralized mule!" - Juan Valdez