class.linux.inc.php

这是一个可以显示localhost 的系统信息的php 生成网页

<?php 
// phpSysInfo - A PHP System Information Script
// http://phpsysinfo.sourceforge.net/
// This program is free software; you can redistribute it and/or
// modify it under the terms of the GNU General Public License
// as published by the Free Software Foundation; either version 2
// of the License, or (at your option) any later version.
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
// GNU General Public License for more details.
// You should have received a copy of the GNU General Public License
// along with this program; if not, write to the Free Software
// Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
// $Id: class.Linux.inc.php,v 1.88 2007/02/25 20:50:52 bigmichi1 Exp $

if (!defined('IN_PHPSYSINFO')) {
    die("No Hacking");
}

require_once(APP_ROOT . '/includes/os/class.BSD.common.inc.php');

class sysinfo {
	var $inifile = "distros.ini";
	var $icon = "unknown.png";
	var $distro = "unknown";
	var $parser;
	
	// get the distro name and icon when create the sysinfo object
	function sysinfo() {
  		$this->parser = new Parser();
		$this->parser->df_param = 'P';
		
		$list = @parse_ini_file(APP_ROOT . "/" . $this->inifile, true);
		if (!$list) {
			return;
		}
		
		$distro_info = execute_program('lsb_release','-a 2> /dev/null', false);  // We have the '2> /dev/null' because Ubuntu gives an error on this command which causes the distro to be unknown
		if ( $distro_info != 'ERROR') {
			$distro_tmp = split("\n",$distro_info);
			foreach( $distro_tmp as $info ) {
				$info_tmp = split(':', $info, 2);
				$distro[ $info_tmp[0] ] = trim($info_tmp[1]);
			}
			if( !isset( $list[$distro['Distributor ID']] ) ){
				return;
			}
			$this->icon = isset($list[$distro['Distributor ID']]["Image"]) ? $list[$distro['Distributor ID']]["Image"] : $this->icon;
			$this->distro = $distro['Description'];
		} else {  // Fall back in case 'lsb_release' does not exist ;)
			foreach ($list as $section => $distribution) {
				if (!isset($distribution["Files"])) {
					continue;
				} else {
					foreach (explode(";", $distribution["Files"]) as $filename) {
						if (file_exists($filename)) {
							$buf = rfts( $filename );
							$this->icon = isset($distribution["Image"]) ? $distribution["Image"] : $this->icon;
							$this->distro = isset($distribution["Name"]) ? $distribution["Name"] . " " . trim($buf) : trim($buf);
							break 2;
						}
					}
				}
			}
		}
	}
  
  // get our apache SERVER_NAME or vhost
  function vhostname () {
    if (! ($result = getenv('SERVER_NAME'))) {
      $result = 'N.A.';
    } 
    return $result;
  } 
  // get the IP address of our vhost name
  function vip_addr () {
    return gethostbyname($this->vhostname());
  }
  // get our canonical hostname
  function chostname () {
    $result = rfts( '/proc/sys/kernel/hostname', 1 );
    if ( $result == "ERROR" ) {
      $result = "N.A.";
    } else {
      $result = gethostbyaddr( gethostbyname( trim( $result ) ) );
    } 
    return $result;
  } 
  // get the IP address of our canonical hostname
  function ip_addr () {
    if (!($result = getenv('SERVER_ADDR'))) {
      $result = gethostbyname($this->chostname());
    } 
    return $result;
  } 

  function kernel () {
    $buf = rfts( '/proc/version', 1 );
    if ( $buf == "ERROR" ) {
      $result = "N.A.";
    } else {
      if (preg_match('/version (.*?) /', $buf, $ar_buf)) {
        $result = $ar_buf[1];

        if (preg_match('/SMP/', $buf)) {
          $result .= ' (SMP)';
        } 
      } 
    } 
    return $result;
  } 
  
  function uptime () {
    $buf = rfts( '/proc/uptime', 1 );
    $ar_buf = split( ' ', $buf );
    $result = trim( $ar_buf[0] );

    return $result;
  } 

	function users () {
		$strResult = 0;
  		$strBuf = execute_program('who', '-q');
		if( $strBuf != "ERROR" ) {
			$arrWho = split( '=', $strBuf );
    			$strResult = $arrWho[1];
		}
		return $strResult;
	}

  function loadavg ($bar = false) {
    $buf = rfts( '/proc/loadavg' );
    if( $buf == "ERROR" ) {
      $results['avg'] = array('N.A.', 'N.A.', 'N.A.');
    } else {
      $results['avg'] = preg_split("/\s/", $buf, 4);
      unset($results['avg'][3]);	// don't need the extra values, only first three
    } 
    if ($bar) {
      $buf = rfts( '/proc/stat', 1 );
      if( $buf != "ERROR" ) {
	sscanf($buf, "%*s %Ld %Ld %Ld %Ld", $ab, $ac, $ad, $ae);
	// Find out the CPU load
	// user + sys = load 
	// total = total
	$load = $ab + $ac + $ad;	// cpu.user + cpu.sys
	$total = $ab + $ac + $ad + $ae;	// cpu.total

	// we need a second value, wait 1 second befor getting (< 1 second no good value will occour)
	sleep(1);
	$buf = rfts( '/proc/stat', 1 );
	sscanf($buf, "%*s %Ld %Ld %Ld %Ld", $ab, $ac, $ad, $ae);
	$load2 = $ab + $ac + $ad;
	$total2 = $ab + $ac + $ad + $ae;
	$results['cpupercent'] = (100*($load2 - $load)) / ($total2 - $total);
      }
    }
    return $results;
  } 

	function cpu_info () {
		$bufr = rfts( '/proc/cpuinfo' );
		$results = array("cpus" => 0);
		
		if ( $bufr != "ERROR" ) {
			$bufe = explode("\n", $bufr);
			
			$results = array('cpus' => 0, 'bogomips' => 0);
			$ar_buf = array();
			
			foreach( $bufe as $buf ) {
				$arrBuff = preg_split('/\s+:\s+/', trim($buf));
				if( count( $arrBuff ) == 2 ) {
					$key = $arrBuff[0];
					$value = $arrBuff[1];
					// All of the tags here are highly architecture dependant.
					// the only way I could reconstruct them for machines I don't
					// have is to browse the kernel source.  So if your arch isn't
					// supported, tell me you want it written in.
					switch ($key) {
						case 'model name':
							$results['model'] = $value;
							break;
						case 'cpu MHz':
							$results['cpuspeed'] = sprintf('%.2f', $value);
							break;
						case 'cycle frequency [Hz]': // For Alpha arch - 2.2.x
							$results['cpuspeed'] = sprintf('%.2f', $value / 1000000);
							break;
						case 'clock': // For PPC arch (damn borked POS)
							$results['cpuspeed'] = sprintf('%.2f', $value);
							break;
						case 'cpu': // For PPC arch (damn borked POS)
							$results['model'] = $value;
							break;
						case 'L2 cache': // More for PPC
							$results['cache'] = $value;
							break;
						case 'revision': // For PPC arch (damn borked POS)
							$results['model'] .= ' ( rev: ' . $value . ')';
							break;
						case 'cpu model': // For Alpha arch - 2.2.x
							$results['model'] .= ' (' . $value . ')';
							break;
						case 'cache size':
							$results['cache'] = $value;
							break;
						case 'bogomips':
							$results['bogomips'] += $value;
							break;
						case 'BogoMIPS': // For alpha arch - 2.2.x
							$results['bogomips'] += $value;
							break;
						case 'BogoMips': // For sparc arch
							$results['bogomips'] += $value;
							break;
						case 'cpus detected': // For Alpha arch - 2.2.x
							$results['cpus'] += $value;
							break;
						case 'system type': // Alpha arch - 2.2.x
							$results['model'] .= ', ' . $value . ' ';
							break;
						case 'platform string': // Alpha arch - 2.2.x
							$results['model'] .= ' (' . $value . ')';
							break;
						case 'processor':
							$results['cpus'] += 1;
							break;
						case 'Cpu0ClkTck': // Linux sparc64
							$results['cpuspeed'] = sprintf('%.2f', hexdec($value) / 1000000);
							break;
						case 'Cpu0Bogo': // Linux sparc64 & sparc32
							$results['bogomips'] = $value;
							break;
						case 'ncpus probed': // Linux sparc64 & sparc32
							$results['cpus'] = $value;
							break;
		 			}
				}
			}
		
			// sparc64 specific code follows
			// This adds the ability to display the cache that a CPU has
			// Originally made by Sven Blumenstein <[e-mail]> in 2004
			// Modified by Tom Weustink <[e-mail]> in 2004
			$sparclist = array('SUNW,UltraSPARC@0,0', 'SUNW,UltraSPARC-II@0,0', 'SUNW,UltraSPARC@1c,0', 'SUNW,UltraSPARC-IIi@1c,0', 'SUNW,UltraSPARC-II@1c,0', 'SUNW,UltraSPARC-IIe@0,0');
			foreach ($sparclist as $name) {
				$buf = rfts( '/proc/openprom/' . $name . '/ecache-size',1 , 32, false );
				if( $buf != "ERROR" ) {
					$results['cache'] = base_convert($buf, 16, 10)/1024 . ' KB';
				}
			}
			// sparc64 specific code ends
	
			// XScale detection code
			if ( $results['cpus'] == 0 ) {
				foreach( $bufe as $buf ) {
					$fields = preg_split('/\s*:\s*/', trim($buf), 2);
					if (sizeof($fields) == 2) {
						list($key, $value) = $fields;
						switch($key) {
							case 'Processor':
								$results['cpus'] += 1;
								$results['model'] = $value;
								break;
							case 'BogoMIPS': //BogoMIPS are not BogoMIPS on this CPU, it's the speed, no BogoMIPS available
								$results['cpuspeed'] = $value;
								break;
							case 'I size':
								$results['cache'] = $value;
								break;
							case 'D size':
								$results['cache'] += $value;
								break;
						}
					}