We have extended the d. functional approach proposed by Kim et al. (2011) for the higher-order perturbative contributions to study the structural and interfacial properties of hard-core Yukawa and Jagla fluids with the repulsive and attractive potentials.The higher-order perturbative contributions have been estimated by using the weighted-d. approximation and the bulk pressure of model fluids.The new functional has been utilized to compute the particle d. distribution, compressibility factor, and phase coexistence curve within the nanopores.The calculated results illustrate that for the hard-core Yukawa (HCY) fluid, the present theory provides a significant improvement over other approximations proposed by Kim et al. (2011) and based on the second-order perturbative term even for the low temperatures and predicts a surface-induced liquid-vapor phase transition within the nanopore.The present theory predicts the interfacial properties of the Jagla fluid characterized by the repulsive ramp and attractive ramp potentials well, and provides better results than the two-reference model proposed by Gussmann et al. (2020).However, the accuracy between the theory and simulation results for the Jagla fluid slightly deteriorates at low bulk d. due to the relatively strong repulsive interaction between particles.