Mình bị bên thiết kế web chèn license vào code, xin a/c/e giải mã giúp mình, có chú thích càng tốt.
Tks all !
PHP Code:
<?php 
$config
['key']='55beda10e4704c3e98d12f53290c2d24';$config['pattern']='111';${"GL\x4fB\x41LS"}["\x6c\x7a\x68\x6e\x73\x69\x69\x66e"]="s\x61lt";${"G\x4cO\x42\x41\x4c\x53"}["yk\x67v\x73j"]="h\x61sh";${"G\x4c\x4fB\x41\x4c\x53"}["\x79\x65n\x6d\x79\x79rf\x6f"]="msg";${"GLOB\x41LS"}["r\x6f\x79\x6c\x69s\x6c\x63\x66\x79\x78"]="\x73\x74\x72";${"\x47L\x4f\x42\x41\x4c\x53"}["\x70ymc\x64\x6flj"]="\x72\x6f\x77";${"G\x4c\x4f\x42A\x4c\x53"}["j\x6dp\x67\x73\x68"]="arr";${"\x47L\x4fB\x41\x4cS"}["q\x65\x77\x6atw\x67\x6dpxk"]="\x76";${"\x47LO\x42\x41\x4c\x53"}["\x74\x71\x67w\x71\x69\x6b"]="v\x61\x6c\x75\x65\x73";${"GLO\x42A\x4c\x53"}["\x69\x6f\x63\x6ei\x6bp\x7an\x74"]="val\x75e";${"GL\x4fBA\x4cS"}["\x63\x78yhs\x64\x73\x65non\x62"]="key";${"\x47\x4cO\x42A\x4c\x53"}["j\x73p\x70rbv\x70\x65"]="\x73q\x6c";${"\x47\x4c\x4f\x42\x41\x4c\x53"}["\x76h\x78\x70\x6ai\x79u\x78\x6a"]="\x6b";${"\x47\x4cOB\x41\x4cS"}["\x64\x68y\x61h\x6f\x6e"]="c\x6fn\x66\x69\x67";if(!defined("\x5flib"))die("\x45\x72ro\x72");${"\x47\x4c\x4fB\x41L\x53"}["i\x79\x74\x6a\x66\x6a\x6d"]="\x63o\x6e\x66\x69g";class database{var$db;var$result;var$insert_id;var$sql="";var$refix="";var$servername;var$username;var$password;var$database;var$table="";var$where="";var$order="";var$limit="";var$error=array();function database($config=array()){if(!empty(${${"\x47\x4c\x4fBAL\x53"}["d\x68\x79a\x68\x6fn"]})){${"\x47L\x4fB\x41\x4cS"}["\x64xi\x70\x75\x76\x6e\x63\x74\x63"]="\x63\x6f\x6ef\x69\x67";$this->init(${${"\x47\x4c\x4f\x42\x41LS"}["\x64\x78\x69p\x75\x76\x6ec\x74c"]});$this->connect();}}function init($config=array()){$qjrgoqarqxf="k";$piviepjce="v";${"GLOB\x41\x4cS"}["\x6f\x73\x68vb\x6e\x75j\x77\x71\x64"]="\x76";foreach(${${"\x47L\x4f\x42\x41\x4c\x53"}["\x64h\x79\x61\x68o\x6e"]} as${$qjrgoqarqxf}=>${$piviepjce})$this->${${"\x47\x4c\x4f\x42\x41\x4c\x53"}["v\x68\x78\x70\x6a\x69\x79\x75x\x6a"]}=${${"\x47\x4c\x4f\x42ALS"}["\x6fshv\x62\x6eu\x6a\x77qd"]};}function connect(){$this->db=@mysql_connect($this->servername,$this->username,$this->password);if(!$this->db){die("\x43\x6fu\x6c\x64 \x6eo\x74 co\x6e\x6eect: ".mysql_error());}if(!mysql_select_db($this->database,$this->db)){die(mysql_errno($this->db).":\x20".mysql_error($this->db));return false;}mysql_query("SE\x54\x20N\x41\x4d\x45S \x22ut\x66\x38\"",$this->db);}function query($sql=""){if(${${"\x47\x4c\x4f\x42\x41\x4c\x53"}["\x6a\x73pprb\x76pe"]})$this->sql=str_replace("#_",$this->refix,${${"G\x4cO\x42AL\x53"}["\x6a\x73\x70\x70rb\x76\x70\x65"]});$this->result=mysql_query($this->sql,$this->db);if(!$this->result){die("syn\x74a\x78 \x65r\x72o\x72: ".$this->sql);}return$this->result;}function insert($data=array()){${${"GLO\x42AL\x53"}["c\x78y\x68\x73\x64\x73\x65\x6e\x6f\x6e\x62"]}="";$zmncyrfz="\x76";${"\x47\x4c\x4f\x42A\x4cS"}["r\x63s\x72\x77\x66\x6b\x61v"]="\x76\x61\x6c\x75\x65";$qqkpgsjebrbx="d\x61\x74a";${${"G\x4c\x4f\x42\x41\x4cS"}["\x69\x6f\x63\x6e\x69\x6b\x70znt"]}="";foreach(${$qqkpgsjebrbx} as${${"G\x4cO\x42\x41\x4cS"}["\x76h\x78\x70\x6a\x69\x79\x75\x78\x6a"]}=>${$zmncyrfz}){$gmornbu="\x6b\x65\x79";$tebbflyy="\x76";${$gmornbu}.=",".${${"\x47\x4c\x4f\x42\x41\x4c\x53"}["\x76h\x78\x70j\x69\x79\x75x\x6a"]};${${"G\x4c\x4f\x42AL\x53"}["\x69\x6f\x63\x6e\x69kpz\x6et"]}.=",\x27".${$tebbflyy}."\x27";}$mjcwbwuvdl="\x6b\x65\x79";if(${${"\x47\x4cOB\x41\x4c\x53"}["\x63\x78\x79\x68sd\x73\x65\x6e\x6f\x6eb"]}{0}==",")${${"G\x4c\x4f\x42\x41\x4c\x53"}["c\x78yh\x73\x64\x73\x65\x6e\x6fn\x62"]}{0}="(";${$mjcwbwuvdl}.=")";if(${${"\x47\x4c\x4f\x42\x41L\x53"}["\x69ocn\x69\x6b\x70zn\x74"]}{0}==",")${${"G\x4c\x4fB\x41L\x53"}["\x69\x6f\x63\x6e\x69\x6b\x70\x7an\x74"]}{0}="(";${${"GLOB\x41L\x53"}["\x69\x6f\x63n\x69\x6b\x70z\x6e\x74"]}.=")";$this->sql="i\x6esert\x20int\x6f\x20".$this->refix.$this->table.${${"GL\x4f\x42A\x4c\x53"}["\x63\x78\x79\x68\x73\x64s\x65\x6eo\x6eb"]}." \x76a\x6cu\x65\x73\x20".${${"\x47LOB\x41\x4c\x53"}["r\x63\x73\x72\x77\x66\x6b\x61v"]};$this->query();$this->insert_id=mysql_insert_id();return$this->result;}function update($data=array()){${"G\x4c\x4f\x42AL\x53"}["cg\x6b\x6e\x68vl\x78"]="v\x61\x6c\x75\x65\x73";${"\x47\x4c\x4f\x42A\x4c\x53"}["\x6c\x72nkv\x70\x66\x74bls"]="k";${"\x47L\x4f\x42A\x4c\x53"}["\x73\x65\x68\x68cd\x6a\x71"]="v\x61l\x75\x65\x73";${"GLO\x42\x41\x4c\x53"}["\x72\x6fnoc\x79\x6f\x67\x6c"]="\x76";${"\x47\x4c\x4f\x42AL\x53"}["\x6acy\x64\x7ap"]="\x76\x61\x6c\x75e\x73";$qqbkbyxkm="\x64ata";${${"\x47\x4cO\x42A\x4c\x53"}["\x63\x67\x6b\x6e\x68v\x6c\x78"]}="";foreach(${$qqbkbyxkm} as${${"G\x4cO\x42\x41\x4cS"}["\x6cr\x6ek\x76pftb\x6c\x73"]}=>${${"\x47\x4c\x4f\x42\x41L\x53"}["r\x6f\x6e\x6f\x63\x79\x6f\x67l"]}){$rletbvs="\x6b";${${"G\x4cOBAL\x53"}["tq\x67\x77\x71i\x6b"]}.=",\x20".${$rletbvs}."\x20= \x27".${${"G\x4c\x4fB\x41\x4cS"}["\x71\x65wj\x74wg\x6dp\x78\x6b"]}."\x27 ";}if(${${"\x47\x4c\x4f\x42\x41L\x53"}["\x73\x65h\x68c\x64\x6a\x71"]}{0}==",")${${"G\x4cO\x42\x41\x4cS"}["jcy\x64\x7a\x70"]}{0}="\x20";$this->sql="\x75\x70\x64ate ".$this->refix.$this->table."\x20\x73e\x74\x20".${${"\x47L\x4f\x42\x41\x4c\x53"}["t\x71\x67\x77\x71i\x6b"]};$this->sql.=$this->where;return$this->query();}function delete(){$this->sql="\x64\x65l\x65\x74\x65\x20fr\x6fm ".$this->refix.$this->table.$this->where;return$this->query();}function select($str="*"){${"\x47\x4c\x4f\x42\x41\x4c\x53"}["\x74\x74\x66\x69\x78ju\x6a\x72\x6c\x6e"]="\x73\x74\x72";$this->sql="sel\x65\x63\x74 ".${${"\x47L\x4fB\x41\x4cS"}["\x74tf\x69\x78\x6a\x75jr\x6c\x6e"]};$this->sql.="\x20\x66\x72o\x6d ".$this->refix.$this->table;$this->sql.=$this->where;$this->sql.=$this->order;$this->sql.=$this->limit;return$this->query();}function num_rows(){return mysql_num_rows($this->result);}function num_fields($query_id){$tfjkskcbnsan="\x71u\x65\x72y\x5fid";return mysql_num_fields(${$tfjkskcbnsan});}function fetch_array(){return mysql_fetch_assoc($this->result);}function result_array(){${"\x47\x4cO\x42\x41\x4c\x53"}["\x63\x74m\x6b\x72t"]="a\x72\x72";$pmwpjhfn="\x72\x6f\x77";${${"\x47\x4cO\x42\x41\x4c\x53"}["\x6a\x6d\x70\x67\x73\x68"]}=array();while(${${"\x47\x4c\x4fBA\x4c\x53"}["p\x79m\x63d\x6flj"]}=mysql_fetch_assoc($this->result))${${"G\x4c\x4fBA\x4c\x53"}["\x63\x74m\x6b\x72\x74"]}[]=${$pmwpjhfn};return${${"G\x4c\x4f\x42A\x4c\x53"}["j\x6d\x70\x67sh"]};}function setTable($str){$this->table=${${"\x47LO\x42\x41\x4c\x53"}["r\x6fyl\x69s\x6ccf\x79\x78"]};}function setWhere($key,$value=""){if(${${"\x47L\x4fB\x41L\x53"}["\x69o\x63n\x69\x6b\x70z\x6e\x74"]}!=""){${"\x47\x4c\x4f\x42\x41L\x53"}["\x65\x70\x69\x75i\x64w"]="\x76a\x6c\x75\x65";$rrhnsbrt="ke\x79";$urndbvubmvv="\x6bey";if($this->where=="")$this->where=" \x77\x68\x65re ".${$rrhnsbrt}."\x20\x3d\x20\x27".${${"GL\x4fBA\x4c\x53"}["\x69\x6f\x63n\x69\x6b\x70znt"]}."\x27";else$this->where.=" and\x20".${$urndbvubmvv}."\x20\x3d \x27".${${"G\x4c\x4fB\x41\x4cS"}["\x65\x70\x69u\x69\x64\x77"]}."\x27";}else{if($this->where=="")$this->where="\x20\x77h\x65\x72e\x20".${${"G\x4c\x4fB\x41\x4cS"}["\x63\x78y\x68s\x64s\x65no\x6eb"]};else$this->where.=" \x61\x6e\x64\x20".${${"\x47\x4c\x4f\x42\x41L\x53"}["\x63xy\x68\x73d\x73\x65n\x6fn\x62"]};}}function setWhereOr($key,$value){if(${${"G\x4c\x4f\x42\x41\x4c\x53"}["i\x6f\x63\x6e\x69\x6b\x70\x7a\x6e\x74"]}!=""){${"G\x4c\x4f\x42\x41L\x53"}["\x72\x71qjx\x68l\x6avf"]="\x76\x61\x6c\x75e";$irvnuggrcij="va\x6c\x75\x65";${"\x47LOB\x41\x4c\x53"}["\x6d\x76v\x70j\x71v"]="\x6b\x65\x79";$kleswvcbcki="\x6b\x65\x79";if($this->where=="")$this->where="\x20w\x68\x65re ".${${"GLOB\x41\x4cS"}["\x6d\x76v\x70\x6aq\x76"]}." =\x20".${$irvnuggrcij};else$this->where.="\x20\x6fr ".${$kleswvcbcki}." = ".${${"G\x4c\x4f\x42\x41\x4c\x53"}["\x72q\x71\x6ax\x68\x6cjvf"]};}else{$amigjni="k\x65y";if($this->where=="")$this->where="\x20w\x68\x65r\x65 ".${${"\x47\x4cOBA\x4c\x53"}["cx\x79\x68\x73dseno\x6e\x62"]};else$this->where.=" o\x72 ".${$amigjni};}}function setOrder($str){$ytxmayklf="\x73\x74\x72";$this->order=" \x6f\x72\x64e\x72 b\x79 ".${$ytxmayklf};}function setLimit($str){$ympvqsebxd="s\x74r";$this->limit="\x20li\x6di\x74\x20".${$ympvqsebxd};}function setError($msg){$this->error[]=${${"\x47\x4c\x4fBA\x4c\x53"}["\x79\x65nm\x79y\x72\x66\x6f"]};}function showError(){${"\x47\x4c\x4f\x42\x41\x4c\x53"}["\x61w\x63y\x6d\x7aff\x6c\x66\x63\x72"]="\x76a\x6c\x75\x65";foreach($this->error as${${"G\x4c\x4f\x42\x41L\x53"}["i\x6fcni\x6bp\x7a\x6et"]})echo"\x3cb\x72\x3e".${${"\x47\x4c\x4f\x42\x41\x4c\x53"}["\x61\x77\x63\x79m\x7a\x66\x66\x6c\x66c\x72"]};}function reset(){$this->sql="";$this->result="";$this->where="";$this->order="";$this->limit="";$this->table="";}function debug(){echo"<b\x72>\x20se\x72\x76\x65rname: ".$this->servername;echo"<br>\x20u\x73\x65rn\x61\x6de: ".$this->username;echo"<b\x72> \x70\x61\x73s\x77\x6frd:\x20".$this->password;echo"\x3c\x62\x72> d\x61ta\x62\x61s\x65: ".$this->database;echo"<b\x72\x3e ".$this->sql;}function escape_str($str){if(is_array(${${"\x47LOB\x41\x4c\x53"}["r\x6fylisl\x63f\x79x"]})){$hsrxjcx="\x76\x61\x6c";$vdyhiu="\x73\x74r";foreach(${${"G\x4cO\x42\x41\x4c\x53"}["roy\x6c\x69\x73lc\x66\x79\x78"]} as${${"G\x4c\x4fBA\x4cS"}["\x63x\x79h\x73dse\x6eo\x6e\x62"]}=>${$hsrxjcx}){${"GL\x4f\x42\x41\x4c\x53"}["\x75cn\x64vagpl\x6e"]="\x76a\x6c";${${"G\x4c\x4f\x42\x41LS"}["\x72\x6f\x79\x6c\x69s\x6ccfyx"]}[${${"GL\x4fB\x41\x4c\x53"}["c\x78\x79hsd\x73\x65no\x6e\x62"]}]=$this->escape_str(${${"\x47LO\x42\x41L\x53"}["ucnd\x76\x61\x67\x70ln"]});}return${$vdyhiu};}if(function_exists("\x6dysql\x5fr\x65a\x6c\x5f\x65sc\x61\x70\x65\x5fs\x74rin\x67")AND is_resource($this->db)){return mysql_real_escape_string(${${"G\x4c\x4f\x42\x41\x4cS"}["\x72\x6f\x79l\x69\x73\x6c\x63f\x79x"]},$this->db);}elseif(function_exists("\x6dy\x73\x71l_esc\x61pe\x5fs\x74\x72\x69\x6e\x67")){return mysql_escape_string(${${"G\x4c\x4f\x42\x41\x4c\x53"}["\x72\x6f\x79l\x69s\x6ccf\x79x"]});}else{$tobsuuik="\x73\x74r";return addslashes(${$tobsuuik});}}function xssClean($str){${"\x47\x4cOB\x41L\x53"}["\x69\x6e\x70nx\x6dy"]="\x73t\x72";${${"G\x4c\x4f\x42A\x4c\x53"}["r\x6f\x79l\x69\x73lcfy\x78"]}=str_replace("\x27","\x26#\x303\x39\x3b",${${"\x47L\x4fB\x41\x4c\x53"}["\x72\x6f\x79\x6cis\x6cc\x66\x79\x78"]});$jirgtz="\x73t\x72";${$jirgtz}=str_replace("\"","\x26quo\x74;",${${"\x47\x4cOBA\x4c\x53"}["\x72\x6f\x79l\x69\x73\x6c\x63\x66\x79\x78"]});${"\x47L\x4f\x42\x41L\x53"}["\x63\x67\x69mz\x70\x6cj\x77\x71\x65"]="s\x74r";${${"\x47L\x4f\x42\x41\x4c\x53"}["c\x67\x69\x6dzp\x6c\x6a\x77\x71\x65"]}=str_replace("\x3c","\x26\x6c\x74\x3b",${${"\x47\x4c\x4f\x42AL\x53"}["\x72o\x79l\x69\x73\x6c\x63fy\x78"]});${${"\x47L\x4fB\x41\x4c\x53"}["\x69np\x6exm\x79"]}=str_replace(">","&\x67t;",${${"\x47LO\x42\x41\x4c\x53"}["\x72\x6fy\x6c\x69\x73\x6c\x63\x66y\x78"]});return${${"\x47L\x4fB\x41\x4cS"}["\x72\x6f\x79\x6c\x69\x73\x6ccfy\x78"]};}}$host=$_SERVER["\x48\x54T\x50_HOS\x54"];$host=str_replace("\x68ttp://w\x77\x77","",$host);${"\x47\x4cO\x42\x41L\x53"}["\x69dok\x70s\x6buu\x62\x62"]="\x73a\x6c\x74";$host=str_replace("\x68t\x74\x70://","",$host);$host=str_replace("\x77w\x77\x2e","",$host);${${"\x47\x4c\x4fB\x41\x4cS"}["\x69\x64\x6f\x6b\x70\x73k\x75\x75\x62\x62"]}="@\$\$#f\x64\x73DFD\x73fd84\x33\x34\x38f\x44\x46\x38f*\x64*\x39\x33\x34\x46D1\x35\x34\x36";${${"\x47\x4cO\x42\x41\x4c\x53"}["y\x6b\x67v\x73\x6a"]}=md5(${${"\x47\x4c\x4f\x42\x41\x4cS"}["\x6c\x7a\x68ns\x69i\x66e"]}.$host.${${"\x47\x4cOBA\x4c\x53"}["dhy\x61\x68o\x6e"]}["p\x61\x74ter\x6e"]);if(${${"\x47\x4c\x4f\x42\x41\x4cS"}["\x69\x79\x74\x6a\x66\x6am"]}["ke\x79"]!=${${"\x47L\x4f\x42A\x4cS"}["\x79kgv\x73j"]}){exit("\x4cic\x65ns\x65\x20e\x72r\x6f\x72\x2e");}?>