php_uname(),    'PHP运行' => php_sapi_name(),    '客户端IP' => $_SERVER['REMOTE_ADDR'],    'mysql版本' => mysql_get_server_info($link));//如果PHP没有禁用exec函数if(function_exists('exec')){    if(strpos(php_uname(),'mac') > -1){        $systype = 'mac';    }else{        $systype = 'linux';    }    switch($systype){        case 'mac':   $cpu_name = exec('sysctl -n machdep.cpu.brand_string');            $mem_usage = exec('echo $(top -l 1 | awk /PhysMem/;)');            break;        case 'linux':  $cpu_name = exec('cat /proc/cpuinfo | grep name | cut -f2 -d: | uniq -c ');            $mem_usage = exec('cat /proc/meminfo | grep Mem');            break;    }    $system['CPU'] = $cpu_name;    $system['内存使用'] = $mem_usage;    $system['开机时间'] = exec('uptime');    $system['磁盘状态'] = exec('df -lh');}$table ='
     
      
       ';foreach($system as $k=>$v){    $table .= "
";}$table.='
       
        
         
$k
         
$v
        
       
      
     
';echo $table;phpinfo();?>