MySQL show columns query to string - mysql

Question

I am looking for a way to convert the result of a query to a string.
The query can be
DESC entries;
or
SHOW COLUMNS FROM entires;
For example, both yield the same result if I execute them in the CLI which is:
+---------+-------------+------+-----+---------+----------------+
| Field | Type | Null | Key | Default | Extra |
+---------+-------------+------+-----+---------+----------------+
| id | int(11) | NO | PRI | NULL | auto_increment |
| name | varchar(45) | YES | | NULL | |
| content | text | YES | | NULL | |
| time | int(11) | YES | | NULL | |
+---------+-------------+------+-----+---------+----------------+
However, I need this table as one string. It is NOT an option for me to get his information out of the information_schema.columns table because this information is not present there. It is further necessary to achieve this on the same query. Using PHP or another language is also not an option.
I have tried various things but none of them have been successful so far.
These queries all resulted in an error:
SELECT group_concat(Field) FROM (SHOW COLUMNS FROM entries);
SELECT group_concat(SHOW COLUMNS FROM entries);
SELECT group_concat(SHOW COLUMNS FROM entries LIMIT 1);
SELECT Field from (SHOW COLUMNS FROM entries);
SELECT 1 from (SHOW COLUMNS FROM entries);
SELECT group_concat(SHOW COLUMNS FROM entries);
SELECT group_concat(SHOW COLUMNS) FROM entries;
I have tried the same with desc entries; but with the same result.
I always get an error like this:
ERROR 1064 (42000): You have an error in your SQL syntax; check the manual that
corresponds to your MySQL server version for the right syntax to use near 'show columns
from entries)' at line 1
Neither Google nor the manual could tell me how to achieve this, maybe I was looking for the wrong phrases. Any help is highly appreciated.