Feature Request: convertion JSON <-> PHP array

[geoffroyp]

Is your feature request related to a problem? Please describe.
Greetings and congratilation for this awesome PHPstorm plugin.
However, I feel there's a very useful feature missing: being able to convert a JSON to an associative PHP array in one click.

Describe the solution you'd like
When selecting a JSON in a file, we could use String Manipulation to automatically convert "{ }" to "[ ]" and ":" to "=>".
Also it would (could?) take care of de-escaping character if escaping is not needed anymore
Then we could do it the other way, from a PHP array to a JSON by replacing "[ ]" by "{ }" on associative arrays (but keeping [ ] on normal arrays), as well as replacing "=>" by ":", and escaping characters that need to be.

Thanks!