php - How to get CPU usage and RAM usage without exec?

Question

How does VBulletin get the system information without the use of exec? Is there any other information I can get about the server without exec? I am interested in:

• bandwidth used
• system type
• CPU speed/usage/count
• RAM usage

Answer 1

Use PHPSysInfo library

phpSysInfo is a open source PHP script that displays information about the host being accessed. It will displays things like:

• Uptime
• CPU
• Memory
• SCSI, IDE, PCI
• Ethernet
• Floppy
• Video Information

It directly parsed parses /proc and does not use exec.

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Another way is to use Linfo. It is a very fast cross-platform php script that describes the host server in extreme detail, giving information such as ram usage, disk space, raid arrays, hardware, network cards, kernel, os, samba/cups/truecrypt status, temps, disks, and much more.