More array actions

[FredrikLindgren]

MERGE_ARRAYS newarray array1 array2 etc

Creates newarray from the contents of the listed arrays.

COUNT_ARRAY_VALUES array variable

Counts the number of values in the specified array and stores the result in the variable.

With PATCH counterparts.

https://forums.pocketplane.net/index.php?topic=29998.0

[4Luke4]

On top of that (if possible):

• the array counterpart of VARIABLE_IS_SET (see here...)
• a way (ACTION/PATCH) to remove elements (i.e. key => value pairs) from an array
  • something like REMOVE_ARRAY_ENTRY key value list
  • it should also take into account multi-dimensional arrays
  • if either key or value are missing (i.e. are left empty), then only check for either key or value