In 1871 Philippe returned with his parents to France. He was
educated at home at the Château d'Eu and at the Collège
Stanislas de Paris. In 1880 he received the title duc d'Orléans
from his father. On June 16, 1881, he received the sacrament of
confirmation at Eu. Philippe finished his military education at
the Royal Military Academy Sandhurst. He was attached for
service to the King's Royal Rifle Corps which was then serving
in India. He never had an actual commission in the British Army,
since it was necessary to avoid the French law forbidding a
Frenchman to hold a commission in a foreign army without the
permission of the head of state. He took rank as a lieutenant
and served in India from January 1888 to March 1889. He was a
staff-officer to Lord Roberts, then Commander-in-Chief in India.
In October 1889 Philippe went to Switzerland to complete a
course in military theory. In February 1890 he visited Paris in
violation of the law of exile of 1886. He offered to do his
military service as required by law.