Add integration tests for json conversion with multidimensional associative arrays containing normal arrays.
Add integration tests for json conversion with multidimensional associative arrays containing normal arrays.

vert-x/mod-lang-php,alwinmark/vertx-php,vert-x/mod-lang-php,khasinski/mod-lang-php,khasinski/mod-lang-php,khasinski/mod-lang-php,alwinmark/vertx-php