Question

I’m trying to run rate -c 192.168.122.0/24 command on my Centos computer and write down the output of that command to the text file using shell_exec('rate -c 192.168.122.0/24') command; still no luck!!

Answer 1

As you forgot to mention, your command provides a non ending output stream. To read the output in real time, you need to use popen.

Example from PHP’s website :

$handle = popen('/path/to/executable 2>&1', 'r');
echo "'$handle'; " . gettype($handle) . "\n";
$read = fread($handle, 2096);
echo $read;
pclose($handle);

You can read the process output just like a file.