php linux shell exec?

[matfish]

On one server I can run  "exec('cat /proc/loadavg')" in a .php file but on another server I can't.

 

Is this PHP related or server related and how can I find out if I can turn this back on?

 

Many thanks

[trq]

Can you exec anything? Some hosts disable exec.

[Mchl]

isn't exec('cat /proc/loadavg') same thing as $var = file_get_contents('/proc/loadavg');?

[matfish]

I get "failed to open stream: Operation not permitted" with the "file_get_contents"

 

I was hoping it was a on/off switch somewhere either php(.ini or something) or server related (dedicated server)?

[Mchl]

There is. Check your safe_mode setting:

http://www.php.net/manual/en/ini.sect.safe-mode.php#ini.safe-mode

[phpchamps]

Generally if you are hosting your website on shared server system level execution commands are disabled.

 

Please put a phpinfo file on your server and search for disable_functions.

 

If exec is there in disabled functions you will have to contact hosting company to enable them.

 

 

[matfish]

I done the phpinfo and found "disable_functions no value no value"

 

I'm on dedicated server so I can alter settings - just not sure where to edit them?

 

Many thanks

[matfish]

I got it - I turned off safe_mode on the domain hosting in question and now all works.

 

Thanks for the pointers.