How to use language PL/PythonU on a PostgreSQL database via phpPgAdmin?

I am used to PgAdmin III where I can simply create python functions like the following on a PostgreSQL database:

CREATE OR REPLACE FUNCTION pyHello (x integer)
RETURNS void AS $$
    if x == 1:
        plpy.notice("Hello World")
$$ LANGUAGE plpythonu VOLATILE;

And that works flawless:

Now, executing exactly the same query on the same database with the same user gives me an error in phpPgAdmin:

ERROR:  syntax error at or near "CREATE"
LINE 1: SELECT COUNT(*) AS total FROM (CREATE OR REPLACE FUNCTION py...
                                       ^

Here is a screenshot:

Now I'm wondering:

1. How to use language PL/PythonU on a PostgreSQL database via phpPgAdmin?
2. Is it even possible to use PL/PythonU through phpPgAdmin?
3. Why is it wrapping my query in a SELECT COUNT(*) FROM (...) AS sub query?

Like this:

SELECT COUNT(*) AS total FROM (CREATE OR REPLACE FUNCTION pyHello (x integer)
RETURNS void AS $$
    if x == 1:
        plpy.notice("Hello World")
$$ LANGUAGE plpythonu VOLATILE) AS sub

This puzzles me a little bit and I couldn't find any information on the internet. As far as I understand the language support is installed into the database, so why is this query working on one interface but not on the other?

The host is ArchLinux with the following package versions installed:

• extra/python2 2.7.9-1
• extra/postgresql 9.4.1-1
• community/phppgadmin 5.1-3
• community/pgadmin3 1.20.0-1

Any ideas?