array-column.xml Replace array() to [], and make ex. #2 executable

[mmalferov]

No description provided.

[mmalferov]

Do you think it would be helpful to change the wording of the sentence in the returnvalues ​​section?

From:

Returns an array of values representing a single column from the input array.

For example, to:

The function iterate over elements of the input array, pulls one value from each array by key or from each object by property name, and returns an array with the results.

Anyway, we need to change the wording, because the term "column" does not refer to an array, but only refers to a column in the result set retrieved from the database

[kamil-tekiela]

Do you think it would be helpful to change the wording...

No I think it's fine as it is now.