Listing all running processes on server using PHP

php linux ubuntu process ps
Zsw picture Zsw · Sep 12, 2015 · Viewed 13.2k times · Source

I am trying to get a list of all processes currently running on my Ubuntu server using PHP. Ideally, I would like to get the following information:

  • The Process ID
  • The Command Used to Execute the Process
  • The Arguments Given to the Process

I know that I can use exec to call ps to list the currently running processes.

exec('ps aux', $output);

However, the output is formatted with arbitrary number of spaces, so parsing it is not the easiest thing in the world.

I could potentially use explode or preg_split to parse, but is there an easier way to get a list of all running processes using php, along with the process id, command, and arguments?

Answer

Zsw picture Zsw · Sep 12, 2015

Most of the credit goes to meuh.

ps ahxwwo pid,command

Gives me the three items I need, but it is still rather difficult to parse due to arbitrary space formatting.

However, it is possible to remove the space formatting.

ps ahxwwo pid:1,command:1

Using explode with a white space as the delimiter now guarantees that index 0 is the pid, and index 1 is the command, and the remaining indices are arguments.

Related questions

Fatal error: Call to undefined function curl_init()

<?php $filename = "xx.gif"; $handle = fopen($filename, "r"); $data = fread($handle, filesize($filename)); // $data is file data $pvars = array('image' => base64_encode($data), 'key' => IMGUR_API_KEY); $timeout = 30; $curl = curl_init(); curl_setopt($curl, CURLOPT_URL, 'http://…

Read More
Install GD library and freetype on Linux

I'm trying to use imagefttext. And I need to have GD library and/or freetype installed. I'm new to this kind of stuffs, How can I install GD library and freetype in Linux ?

Read More
php.ini changes but not effective in ubuntu

I want change the limit of php upload file's size And this is some information of my phpinfo. Configuration File (php.ini) Path /etc/php5/apache2 Loaded Configuration File /etc/php5/apache2/php.ini And this is the content of …

Read More