Simple Linux under PHP get Server status Code _php tutorial

The Simple Linux PHP gets the server state code, not much to say-directly on the function:

function Get_used_status () {
$fp = Popen (' top-b-N 2 | grep-e "^ (cpu| mem| Tasks) "'," "R");//Get a moment of system CPU and memory usage
$rs = "";
while (!feof ($fp)) {
$rs. = Fread ($fp, 1024);
}
Pclose ($FP);
$sys _info = explode ("\ n", $rs);

$tast _info = Explode (",", $sys _info[3]);//process array
$cpu _info = Explode (",", $sys _info[4]); Array of CPU occupancy
$mem _info = Explode (",", $sys _info[5]); Memory Occupancy Array

Number of processes that are running
$tast _running = Trim (Trim ($tast _info[1], ' running '));
CPU occupancy
$cpu _usage = Trim (Trim ($cpu _info[0], ' CPU (s): '), '%us '); Percentage

Memory occupancy
$mem _total = Trim (Trim ($mem _info[0], ' mem: '), ' k total ');
$mem _used = Trim ($mem _info[1], ' k used ');
$mem _usage = Round (100*intval ($mem _used)/intval ($mem _total), 2); Percentage

/* Hard Drive utilization begin*/
$fp = Popen (' df-lh | grep-e "^ (/)" ', "R");
$rs = Fread ($fp, 1024);
Pclose ($FP);
$rs = Preg_replace ("/\s{2,}/", "', $rs); Replace multiple spaces with "_"
$HD = Explode ("", $rs);
$hd _avail = Trim ($HD [3], ' G '); Disk free space Size Unit g
$hd _usage = Trim ($HD [4], '% '); mount point Percentage
Print_r ($HD);
/* Hard Drive utilization end*/

Detection time
$fp = Popen ("date +\"%y-%m-%d%h:%m\ "", "R");
$rs = Fread ($fp, 1024);
Pclose ($FP);
$detection _time = Trim ($RS);

/* Get IP address begin*/
/*
$fp = Popen (' ifconfig eth0 | grep-e "(inet addr)" ', ' r ');
$rs = Fread ($fp, 1024);
Pclose ($FP);
$rs = Preg_replace ("/\s{2,}/", "", Trim ($rs)); Replace multiple spaces with "_"
$rs = Explode ("", $rs);
$ip = Trim ($rs [1], ' addr: ');
*/
/* Get IP address end*/
/*
$file _name = "/tmp/data.txt"; Absolute path: Homedata.dat
$file _pointer = fopen ($file _name, "A +"); "W" is a pattern, see later
Fwrite ($file _pointer, $IP); First cut the file to a size of 0 bytes, then write
Fclose ($file _pointer); End
*/

The return array (' cpu_usage ' = = $cpu _usage, ' mem_usage ' and ' _usage ', ' hd_avail ' = $hd _avail, ' hd_usage ' = $hd _ Usage, ' tast_running ' = $tast _running, ' detection_time ' = $detection _time);
}

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