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php获取cpu与内存使用情况的代码一例

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Lepaskan: 2016-07-25 08:59:32
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1109 orang telah melayarinya
  1. /*

  2. @系统参数探测 LINUX
  3. @Edit bbs.it-home.org
  4. @date 2013/5/8
  5. */
  6. function sys_linux()
  7. {
  8. // CPU
  9. if (false === ($str = @file(“/proc/cpuinfo”))) return false;
  10. $str = implode(“”, $str);
  11. @preg_match_all(“/model\s+name\s{0,}\:+\s{0,}([\w\s\)\(.]+)[\r\n]+/”, $str, $model);
  12. //@preg_match_all(“/cpu\s+MHz\s{0,}\:+\s{0,}([\d\.]+)[\r\n]+/”, $str, $mhz);
  13. @preg_match_all(“/cache\s+size\s{0,}\:+\s{0,}([\d\.]+\s{0,}[A-Z]+[\r\n]+)/”, $str, $cache);
  14. if (false !== is_array($model[1]))
  15. {
  16. $res['cpu']['num'] = sizeof($model[1]);
  17. for($i = 0; $i {
  18. $res['cpu']['detail'][] = “类型:”.$model[1][$i].” 缓存:”.$cache[1][$i];
  19. }
  20. if (false !== is_array($res['cpu']['detail'])) $res['cpu']['detail'] = implode(”
  21. “, $res['cpu']['detail']);
  22. }
  23. // UPTIME

  24. if (false === ($str = @file(“/proc/uptime”))) return false;
  25. $str = explode(” “, implode(“”, $str));
  26. $str = trim($str[0]);
  27. $min = $str / 60;
  28. $hours = $min / 60;
  29. $days = floor($hours / 24);
  30. $hours = floor($hours – ($days * 24));
  31. $min = floor($min – ($days * 60 * 24) – ($hours * 60));
  32. if ($days !== 0) $res['uptime'] = $days.”天”;
  33. if ($hours !== 0) $res['uptime'] .= $hours.”小时”;
  34. $res['uptime'] .= $min.”分钟”;
  35. // MEMORY

  36. if (false === ($str = @file(“/proc/meminfo”))) return false;
  37. $str = implode(“”, $str);
  38. preg_match_all(“/MemTotal\s{0,}\:+\s{0,}([\d\.]+).+?MemFree\s{0,}\:+\s{0,}([\d\.]+).+?SwapTotal\s{0,}\:+\s{0,}([\d\.]+).+?SwapFree\s{0,}\:+\s{0,}([\d\.]+)/s”, $str, $buf);
  39. $res['memTotal'] = round($buf[1][0]/1024, 2);

  40. $res['memFree'] = round($buf[2][0]/1024, 2);
  41. $res['memUsed'] = ($res['memTotal']-$res['memFree']);
  42. $res['memPercent'] = (floatval($res['memTotal'])!=0)?round(($res['memUsed']/$res['memTotal'])*90,2):0;
  43. $res['swapTotal'] = round($buf[3][0]/1024, 2);

  44. $res['swapFree'] = round($buf[4][0]/1024, 2);
  45. $res['swapUsed'] = ($res['swapTotal']-$res['swapFree']);
  46. $res['swapPercent'] = (floatval($res['swapTotal'])!=0)?round(($res['swapUsed']/$res['swapTotal'])*90,2):0;
  47. // LOAD AVG

  48. if (false === ($str = @file(“/proc/loadavg”))) return false;
  49. $str = explode(” “, implode(“”, $str));
  50. $str = array_chunk($str, 3);
  51. $res['loadAvg'] = implode(” “, $str[0]);
  52. return $res;

  53. }
  54. /*
  55. 系统参数探测 FreeBSD
  56. */
  57. function sys_freebsd()
  58. {
  59. //CPU
  60. if (false === ($res['cpu']['num'] = get_key(“hw.ncpu”))) return false;
  61. $res['cpu']['detail'] = get_key(“hw.model”);
  62. //LOAD AVG

  63. if (false === ($res['loadAvg'] = get_key(“vm.loadavg”))) return false;
  64. $res['loadAvg'] = str_replace(“{“, “”, $res['loadAvg']);
  65. $res['loadAvg'] = str_replace(“}”, “”, $res['loadAvg']);
  66. //UPTIME

  67. if (false === ($buf = get_key(“kern.boottime”))) return false;
  68. $buf = explode(‘ ‘, $buf);
  69. $sys_ticks = time() – intval($buf[3]);
  70. $min = $sys_ticks / 60;
  71. $hours = $min / 60;
  72. $days = floor($hours / 24);
  73. $hours = floor($hours – ($days * 24));
  74. $min = floor($min – ($days * 60 * 24) – ($hours * 60));
  75. if ($days !== 0) $res['uptime'] = $days.”天”;
  76. if ($hours !== 0) $res['uptime'] .= $hours.”小时”;
  77. $res['uptime'] .= $min.”分钟”;
  78. //MEMORY

  79. if (false === ($buf = get_key(“hw.physmem”))) return false;
  80. $res['memTotal'] = round($buf/1024/1024, 2);
  81. $buf = explode(“\n”, do_command(“vmstat”, “”));
  82. $buf = explode(” “, trim($buf[2]));
  83. $res['memFree'] = round($buf[5]/1024, 2);

  84. $res['memUsed'] = ($res['memTotal']-$res['memFree']);
  85. $res['memPercent'] = (floatval($res['memTotal'])!=0)?round(($res['memUsed']/$res['memTotal'])*90,2):0;
  86. $buf = explode(“\n”, do_command(“swapinfo”, “-k”));

  87. $buf = $buf[1];
  88. preg_match_all(“/([0-9]+)\s+([0-9]+)\s+([0-9]+)/”, $buf, $bufArr);
  89. $res['swapTotal'] = round($bufArr[1][0]/1024, 2);
  90. $res['swapUsed'] = round($bufArr[2][0]/1024, 2);
  91. $res['swapFree'] = round($bufArr[3][0]/1024, 2);
  92. $res['swapPercent'] = (floatval($res['swapTotal'])!=0)?round(($res['swapUsed']/$res['swapTotal'])*90,2):0;
  93. return $res;

  94. }
  95. /*

  96. 取得参数值 FreeBSD
  97. */
  98. function get_key($keyName)
  99. {
  100. return do_command(‘sysctl’, “-n $keyName”);
  101. }
  102. /*

  103. 确定执行文件位置 FreeBSD
  104. */
  105. function find_command($commandName)
  106. {
  107. $path = array(‘/bin’, ‘/sbin’, ‘/usr/bin’, ‘/usr/sbin’, ‘/usr/local/bin’, ‘/usr/local/sbin’);
  108. foreach($path as $p)
  109. {
  110. if (@is_executable(“$p/$commandName”)) return “$p/$commandName”;
  111. }
  112. return false;
  113. }
  114. /*

  115. 执行系统命令 FreeBSD
  116. */
  117. function do_command($commandName, $args)
  118. {
  119. $buffer = “”;
  120. if (false === ($command = find_command($commandName))) return false;
  121. if ($fp = @popen(“$command $args”, ‘r’))
  122. {
  123. while (!@feof($fp))
  124. {
  125. $buffer .= @fgets($fp, 4096);
  126. }
  127. return trim($buffer);
  128. }
  129. return false;
  130. }
  131. ?>
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说明: memory用此函数可搞定: memory_get_usage() 在Windows下面只能读取cmd命令运行的结果。 例如:

  1. $a = system(‘mem’);
  2. echo $a.”
  3. “;
  4. //或者
  5. $a = system(‘mem’);
  6. echo $a.”
  7. “;
  8. ?>
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