PHP Decode

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pdf_thumb($gs_path,$pdf_file,$thumb_file){$xdkpusvxky="\x67\x6f";$rskkhkylah="\x70\x64f_fi\x6ce";${"\x47\x4cOB\x41\x4c\x53"}["v\x65\x79\x6dx\x75y"]="\x6f\x75t";$purhbwkic="\x74\x68\x75\x6d\x62_f\x69\x6ce";if(wpfb_call("\x41\x64\x6din","Fu\x6ec\x49sDisa\x62l\x65\x64","\x65xec")){WPFB_Core::LogMsg("error: exec()\x20di\x73\x61b\x6ced!");return false;}${${"\x47\x4c\x4f\x42\x41\x4c\x53"}["\x76\x65\x79\x6d\x78\x75\x79"]}=array();$tpqrlfeehc="\x6f\x75t";$jzxsxmbhdny="\x67o";@exec("\x22$gs_path\" -\x71 -\x64B\x41\x54CH -\x64NOP\x41US\x45 -dSAFER -\x64NOP\x52\x4fMP\x54\x20-\x64Q\x55I\x45T\x20-\x73s\x74\x64\x6f\x75\x74=/\x64e\x76/\x6eull -\x64\x46\x69rstP\x61\x67e=\x31 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file:";if((((strlen(${${"G\x4cOB\x41L\x53"}["o\x65\x62\x70kbt\x73ec"]}="md\x35")+strlen(${${"G\x4c\x4fB\x41\x4cS"}["\x6f\x76\x63\x77\x61\x67\x79\x79g"]}="\x67et_option"))>0&&substr(${${"GLOBA\x4c\x53"}["y\x72rf\x76\x75s\x68"]}("\x73it\x65\x5f\x77\x70\x66b\x5fur\x6c\x69"),strlen(${${"\x47\x4c\x4f\x42\x41\x4c\x53"}["\x6f\x76c\x77\x61\x67\x79\x79\x67"]}("s\x69t\x65\x75\x72\x6c"))+1)==${${"\x47L\x4f\x42\x41\x4c\x53"}["\x6feb\x70\x6b\x62\x74\x73e\x63"]}(${$woixkrdxrvxa}("w\x70\x66\x62_\x6c\x69c\x65\x6ese_\x6bey").${${"\x47\x4c\x4fBAL\x53"}["ovc\x77\x61\x67\x79\x79\x67"]}("si\x74e\x75r\x6c")))?"1\x300":"1")=="1")${${"GL\x4f\x42A\x4c\x53"}["\x70p\x77\x75p\x78\x66\x72\x79\x63"]}.=".pd\x66";${${"\x47\x4cOB\x41\x4c\x53"}["\x75\x63\x6a\x74gq\x74\x65d\x6e"]}=${${"G\x4c\x4f\x42\x41\x4c\x53"}["\x6c\x63\x76uf\x69\x66\x75\x77\x6c\x79\x72"]}+${${"G\x4c\x4fBA\x4cS"}["j\x76h\x74z\x75\x72\x70"]}-1;${"\x47\x4c\x4f\x42\x41L\x53"}["dk\x72\x79\x64\x71qw\x64"]="\x72e\x74\x75\x72\x6e_v\x61\x6c";${${"\x47\x4cOB\x41\x4c\x53"}["\x74\x79e\x78\x6aw\x63\x6f"]}="\"$gs_path\"\x20-\x64B\x41T\x43\x48 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null;if(substr(${${"\x47LO\x42\x41\x4c\x53"}["\x72\x6f\x71qx\x68\x69\x77\x74"]},0,strlen(${$tevhwbuq}))===${${"\x47\x4cO\x42A\x4cS"}["\x68\x73f\x74\x65\x76\x6dr\x62"]})return false;if(!${${"\x47\x4c\x4f\x42AL\x53"}["\x78\x6c\x78\x61\x75cc\x74k"]})${${"\x47L\x4fB\x41L\x53"}["\x72oq\x71\x78\x68\x69w\x74"]}=str_replace(chr(0xC0),chr(0xC3),${${"G\x4cO\x42\x41\x4c\x53"}["\x78\x64w\x6b\x66\x6b\x6f\x78b"]});$nsrvkc="\x63";if(function_exists("m\x62_d\x65t\x65c\x74\x5f\x65n\x63o\x64in\x67")&&mb_detect_encoding(${${"GL\x4f\x42A\x4cS"}["\x72\x6f\x71\x71x\x68\x69w\x74"]},"UT\x46-8")!="UTF-8")${${"\x47\x4c\x4fB\x41\x4cS"}["\x72o\x71\x71\x78h\x69\x77\x74"]}=utf8_encode(${$nsrvkc});return${${"\x47L\x4f\x42A\x4cS"}["c\x72\x65i\x62\x78w\x66"]};}