  We calculate the production of real photons originating from the
photoproduction in relativistic $pp$ collisions. The
Weizs$\ddot{\mathrm{a}}$cker-Williams approximation in the photoproduction is
considered. Numerical results agree with the experimental data from
Relativistic Heavy Ion Collider (RHIC) and Large Hadron Collider (LHC). We find
that the modification of the photoproduction is more prominent in large
transverse momentum region.
