php获取cpu使用率、硬盘使用、内存使用

时间：03-11来源：作者：点击数：44

cpu 使用率

代码实现：

<?php
    function getCpu()
    {        
        exec("top -n 1| grep id| awk {'print $8'}", $out);
        var_dump($out);
        $cpu_usage = 100 - $out[0]; //还有这么多可用

        $ret = array('cpu'=>$cpu_usage);
        return $ret;
    }

    $cpu = getCpu();
    var_dump($cpu); //CPU 当前使用率百分比
?>

结果显示：

array(1) {
  [0]=>
  string(4) "35.0"
}
array(1) {
  ["cpu"]=>
  float(65)
}

硬盘使用率

代码实现：

<?php
    function getDisk()
    {           
        $result = array();
        exec("df", $result);
        var_dump($result);  //见打印区域
		$s_total = 0;
		$s_used = 0;
		foreach($result as $value){
			if(strripos($value,"/mnt")!==false && strripos($value,"sd")!==false){
				preg_match("/([\/\w+]*)(\s*)(\d+\.?\d*\w+)(\s*)(\d+\.?\d*\w+)(\s*)(\d+\.?\d*\w+)(\s*)(\d+\.*\d*%)(\s*)(\/mnt)/i",$value,$match);
                var_dump($match); //见打印区域
				$s_total += intval($match[3]);
				$s_used += intval($match[5]);
			}
		}
		$disk_val = intval($s_used/1024);
		$disk_usage = intval($s_used/1024).'/'.intval($s_total/1024);
		$ret = array('disk'=>$disk_usage,'disk_usage'=>$disk_val);
        
        return $ret;//系统硬盘空间使用率 系统盘空间使用率
    }

    $disk = getDisk();
    var_dump($disk); //见打印区域
 */
?>

结果显示：


/*
array(10) {
  [0]=>
  string(70) "文件系统           1K-块     已用      可用 已用% 挂载点"
  [1]=>
  string(51) "/dev/root       14899176  7580252   6542376   54% /"
  [2]=>
  string(54) "devtmpfs         8293440        0   8293440    0% /dev"
  [3]=>
  string(58) "tmpfs            8296512        0   8296512    0% /dev/shm"
  [4]=>
  string(54) "tmpfs            8296512   391232   7905280    5% /run"
  [5]=>
  string(59) "tmpfs               5120        0      5120    0% /run/lock"
  [6]=>
  string(64) "tmpfs            8296512        0   8296512    0% /sys/fs/cgroup"
  [7]=>
  string(55) "/dev/sda1         523248   163956    359292   32% /boot"
  [8]=>
  string(54) "/dev/sda5      197607880 15855736 171644548    9% /mnt"
  [9]=>
  string(54) "tmpfs            2097152   102528   1994624    5% /tmp"
}
array(12) {
  [0]=>
  string(54) "/dev/sda5      197607880 15855736 171644548    9% /mnt"
  [1]=>
  string(9) "/dev/sda5"
  [2]=>
  string(6) "      "
  [3]=>
  string(9) "197607880"
  [4]=>
  string(1) " "
  [5]=>
  string(8) "15855736"
  [6]=>
  string(1) " "
  [7]=>
  string(9) "171644548"
  [8]=>
  string(4) "    "
  [9]=>
  string(2) "9%"
  [10]=>
  string(1) " "
  [11]=>
  string(4) "/mnt"
}
array(2) {
  ["disk"]=>
  string(12) "15484/192976"
  ["disk_usage"]=>
  int(15484)
}

内存使用率

代码实现：

<?php
    function getMemory()
    {
        $str = shell_exec('more /proc/meminfo');
        $pattern = "/(.+):\s*([0-9]+)/";
        preg_match_all($pattern, $str, $out);
        var_dump($out);

        //总内存-空闲内存=已使用内存
        $mem_val = intval($out[2][0]-$out[2][1]);
        //已使用内存 / 总的内存 = 内存使用率
		$mem_usage = intval($out[2][0]-$out[2][1])./.intval($out[2][0]);

        $ret = array('mem'=>$mem_usage,'mem_usage'=>$mem_val);
        return $ret;  //系统内存使用率
    }

    $memory = getMemory();
    var_dump($memory);
?>

结果显示：

/*
array(3) {
  [0]=>
  array(45) {
    [0]=>
    string(24) "MemTotal:       16593088"
    [1]=>
    string(24) "MemFree:         2904768"
    [2]=>
    string(24) "MemAvailable:    3336832"
    [3]=>
    string(24) "Buffers:          699520"
    [4]=>
    string(24) "Cached:          1220096"
    [5]=>
    string(24) "SwapCached:            0"
    [6]=>
    string(24) "Active:          3834752"
    [7]=>
    string(24) "Inactive:         501824"
    [8]=>
    string(24) "Active(anon):    2939584"
    [9]=>
    string(24) "Inactive(anon):   433856"
    [10]=>
    string(24) "Active(file):     895168"
    [11]=>
    string(24) "Inactive(file):    67968"
    [12]=>
    string(24) "Unevictable:           0"
    [13]=>
    string(24) "Mlocked:               0"
    [14]=>
    string(24) "SwapTotal:             0"
    [15]=>
    string(24) "SwapFree:              0"
    [16]=>
    string(24) "Dirty:              1024"
    [17]=>
    string(24) "Writeback:             0"
    [18]=>
    string(24) "AnonPages:       2418240"
    [19]=>
    string(24) "Mapped:          1238848"
    [20]=>
    string(24) "Shmem:            956608"
    [21]=>
    string(24) "Slab:             503680"
    [22]=>
    string(24) "SReclaimable:     144896"
    [23]=>
    string(24) "SUnreclaim:       358784"
    [24]=>
    string(24) "KernelStack:        5280"
    [25]=>
    string(24) "PageTables:        18368"
    [26]=>
    string(24) "NFS_Unstable:          0"
    [27]=>
    string(24) "Bounce:                0"
    [28]=>
    string(24) "WritebackTmp:          0"
    [29]=>
    string(24) "CommitLimit:     8296512"
    [30]=>
    string(24) "Committed_AS:    6852224"
    [31]=>
    string(28) "VmallocTotal:   133009637312"
    [32]=>
    string(24) "VmallocUsed:           0"
    [33]=>
    string(24) "VmallocChunk:          0"
    [34]=>
    string(24) "Percpu:             4608"
    [35]=>
    string(24) "HardwareCorrupted:     0"
    [36]=>
    string(24) "AnonHugePages:         0"
    [37]=>
    string(24) "ShmemHugePages:        0"
    [38]=>
    string(24) "ShmemPmdMapped:        0"
    [39]=>
    string(24) "HugePages_Total:       0"
    [40]=>
    string(24) "HugePages_Free:        0"
    [41]=>
    string(24) "HugePages_Rsvd:        0"
    [42]=>
    string(24) "HugePages_Surp:        0"
    [43]=>
    string(24) "Hugepagesize:     524288"
    [44]=>
    string(24) "Hugetlb:               0"
  }
  [1]=>
  array(45) {
    [0]=>
    string(8) "MemTotal"
    [1]=>
    string(7) "MemFree"
    [2]=>
    string(12) "MemAvailable"
    [3]=>
    string(7) "Buffers"
    [4]=>
    string(6) "Cached"
    [5]=>
    string(10) "SwapCached"
    [6]=>
    string(6) "Active"
    [7]=>
    string(8) "Inactive"
    [8]=>
    string(12) "Active(anon)"
    [9]=>
    string(14) "Inactive(anon)"
    [10]=>
    string(12) "Active(file)"
    [11]=>
    string(14) "Inactive(file)"
    [12]=>
    string(11) "Unevictable"
    [13]=>
    string(7) "Mlocked"
    [14]=>
    string(9) "SwapTotal"
    [15]=>
    string(8) "SwapFree"
    [16]=>
    string(5) "Dirty"
    [17]=>
    string(9) "Writeback"
    [18]=>
    string(9) "AnonPages"
    [19]=>
    string(6) "Mapped"
    [20]=>
    string(5) "Shmem"
    [21]=>
    string(4) "Slab"
    [22]=>
    string(12) "SReclaimable"
    [23]=>
    string(10) "SUnreclaim"
    [24]=>
    string(11) "KernelStack"
    [25]=>
    string(10) "PageTables"
    [26]=>
    string(12) "NFS_Unstable"
    [27]=>
    string(6) "Bounce"
    [28]=>
    string(12) "WritebackTmp"
    [29]=>
    string(11) "CommitLimit"
    [30]=>
    string(12) "Committed_AS"
    [31]=>
    string(12) "VmallocTotal"
    [32]=>
    string(11) "VmallocUsed"
    [33]=>
    string(12) "VmallocChunk"
    [34]=>
    string(6) "Percpu"
    [35]=>
    string(17) "HardwareCorrupted"
    [36]=>
    string(13) "AnonHugePages"
    [37]=>
    string(14) "ShmemHugePages"
    [38]=>
    string(14) "ShmemPmdMapped"
    [39]=>
    string(15) "HugePages_Total"
    [40]=>
    string(14) "HugePages_Free"
    [41]=>
    string(14) "HugePages_Rsvd"
    [42]=>
    string(14) "HugePages_Surp"
    [43]=>
    string(12) "Hugepagesize"
    [44]=>
    string(7) "Hugetlb"
  }
  [2]=>
  array(45) {
    [0]=>
    string(8) "16593088"
    [1]=>
    string(7) "2904768"
    [2]=>
    string(7) "3336832"
    [3]=>
    string(6) "699520"
    [4]=>
    string(7) "1220096"
    [5]=>
    string(1) "0"
    [6]=>
    string(7) "3834752"
    [7]=>
    string(6) "501824"
    [8]=>
    string(7) "2939584"
    [9]=>
    string(6) "433856"
    [10]=>
    string(6) "895168"
    [11]=>
    string(5) "67968"
    [12]=>
    string(1) "0"
    [13]=>
    string(1) "0"
    [14]=>
    string(1) "0"
    [15]=>
    string(1) "0"
    [16]=>
    string(4) "1024"
    [17]=>
    string(1) "0"
    [18]=>
    string(7) "2418240"
    [19]=>
    string(7) "1238848"
    [20]=>
    string(6) "956608"
    [21]=>
    string(6) "503680"
    [22]=>
    string(6) "144896"
    [23]=>
    string(6) "358784"
    [24]=>
    string(4) "5280"
    [25]=>
    string(5) "18368"
    [26]=>
    string(1) "0"
    [27]=>
    string(1) "0"
    [28]=>
    string(1) "0"
    [29]=>
    string(7) "8296512"
    [30]=>
    string(7) "6852224"
    [31]=>
    string(12) "133009637312"
    [32]=>
    string(1) "0"
    [33]=>
    string(1) "0"
    [34]=>
    string(4) "4608"
    [35]=>
    string(1) "0"
    [36]=>
    string(1) "0"
    [37]=>
    string(1) "0"
    [38]=>
    string(1) "0"
    [39]=>
    string(1) "0"
    [40]=>
    string(1) "0"
    [41]=>
    string(1) "0"
    [42]=>
    string(1) "0"
    [43]=>
    string(6) "524288"
    [44]=>
    string(1) "0"
  }
}
array(2) {
  ["mem"]=>
  string(17) "13688320/16593088"
  ["mem_usage"]=>
  int(13688320)
}

*/