问题
I want to get server CPU and RAM usage using php. The script should work on windows and linux.
How would I do that?
回答1:
The first function will return the Server Memory Usage:
function get_server_memory_usage(){
$free = shell_exec('free');
$free = (string)trim($free);
$free_arr = explode("\n", $free);
$mem = explode(" ", $free_arr[1]);
$mem = array_filter($mem);
$mem = array_merge($mem);
$memory_usage = $mem[2]/$mem[1]*100;
return $memory_usage;
}
This function will return the Server CPU Usage:
function get_server_cpu_usage(){
$load = sys_getloadavg();
return $load[0];
}
回答2:
I'd advise using PHP SNMP
http://www.php.net/manual/en/book.snmp.php
This will provide a unified solution for both Windows and Linux without have to mess around with exec commands.
You will of course need to install a Windows SNMP daemon/service on both your Windows and Linux servers
For Linux, just use Net-SNMP eg CentOS
sudo yum install net-snmp
sudo service snmpd start
sudo chkconfig snmpd on
Net-SNMP is also available for Windows:
http://www.net-snmp.org/
来源：https://stackoverflow.com/questions/22949295/how-do-you-get-server-cpu-usage-and-ram-usage-with-php