PHP gets the computer's unique identifier [CPU, Nic MAC address]
<textarea name="code" class="php">//Get CPU information of the computer function Onlyu () {$a = '; $b = Array (); if (function_exists (' exec ')) {if (mailto:! @exec (/all ", $b)) {return false; }}elseif (Function_exists (' system ')) {Ob_start (); if (mailto:! @system (/all ")) {return false; }else{} $b = Ob_get_contents (); Ob_end_clean (); $b = explode ("\ n", $b);//print_r ($b); Array_pop ($b); }else{return false; } $all = sizeof ($b); for ($i = 0; $i < $all; $i + +) {if (Strpos ($b [$i], "Description") {!== false) {if (Strpos ($b [$i +1], "physical Address")!== False) {$c = Explode (":", $b [$i +1]); $a = Trim ($c [1]); Break }}}//End for return empty ($a)? false: $a; }//End function Onlyu//Get NIC's MAC address function Getmac () {@exec ("Ipconfig/all", $array); for ($Tmpa; $Tmpa <count ($array), $Tmpa + +) {if (Eregi ("Physical", $array [$Tmpa])) {$mac =explode (":", $array [$Tmpa]); return $mac [1]; } } }</textarea>