[#3940] Adding php example for an array of emails
minor #4135 [#3940] Adding php example for an array of emails (weaverryan)

This PR was merged into the 2.3 branch.

Discussion
----------

[#3940] Adding php example for an array of emails

This follows #3940. It just adds the example also to PHP. But I can't see how this would work with XML.

| Q             | A
| ------------- | ---
| Doc fix?      | yes
| New docs?     | no
| Applies to    | 2.3+
| Fixed tickets |

Thanks!

Commits
-------

0366d6e [#3940] Adding php example for an array of emails