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We present the results of the search for ultra-high-energy photons with nineyears of data from the Telescope Array surface detector. A multivariateclassifier is built upon 16 reconstructed parameters of the extensive airshower. These parameters are related to the curvature and the width of theshower front, the steepness of the lateral distribution function, and thetiming parameters of the waveforms sensitive to the shower muon content. Atotal number of two photon candidates found in the search is fully compatiblewith the expected background. The $95\%\,$CL limits on the diffuse flux of thephotons with energies greater than $10^{18.0}$, $10^{18.5}$, $10^{19.0}$,$10^{19.5}$ and $10^{20.0}$ eV are set at the level of $0.067$, $0.012$,$0.0036$, $0.0013$, $0.0013~\mbox{km}^{-2}\mbox{yr}^{-1}\mbox{sr}^{-1}$correspondingly.

Constraints on the diffuse photon flux with energies above $10^{18}$ eV using the surface detector of the Telescope Array experiment