php and exec problems

misulica · 05-05-2008, 11:41 AM

hello.
i have a php file and in it i use ffmpeg to convert the movie to flv
it uses exec() to do it but it doesent work
i tried this small script:

Code:

<?php
echo '<pre>';
echo exec('whoami') or die("It doesn't work");
echo '</pre>';
?>

i tried all sort of commands like pwd, ls, everything and still getting erros.
safe mode is off

abefroman · 05-05-2008, 11:43 AM

What is the error its giving?

misulica · 05-05-2008, 11:45 AM

when i access the web page from www i get this:
It doesn't work
can you tell me the location of the httpd error log
Edit:
# vi /var/log/httpd/error_log
sh: /whoami: No such file or directory

TB0ne · 05-05-2008, 11:47 AM

Quote:

Originally Posted by misulica

can you tell me the location of the httpd error log

Try looking in the /var/log/apache directory. You should see logs in there. It may be in a different location on your system, maybe under /var/log/apache2. Check your Apache configuration file, and it should point you to where the logs are kept.

misulica · 05-05-2008, 11:51 AM

check my post before and see the error i get

misulica · 05-05-2008, 02:06 PM

# vi /var/log/httpd/error_log
sh: /whoami: No such file or directory

and i get in http: It doesn't work

TB0ne · 05-05-2008, 02:18 PM

Quote:

Originally Posted by misulica

# vi /var/log/httpd/error_log
sh: /whoami: No such file or directory

and i get in http: It doesn't work

The command isn't in your path. Try to specify the explicit path of the command, such as /usr/bin/whoami, and see what happens.

misulica · 05-05-2008, 02:44 PM

i replaced it.
same errors both in web and in httpd log

TB0ne · 05-05-2008, 03:04 PM

Quote:

Originally Posted by misulica

i replaced it.
same errors both in web and in httpd log

Hmm...try to leave off the "or die("It doesn't work");", and see if it goes then. You might also want to check out the php docs at:

http://us2.php.net/manual/en/function.exec.php

misulica · 05-05-2008, 03:17 PM

i just tried now it doesen`t show anything...i checked the php manual too and added a simple exec() function and still nothing
can the problem be like php doesent has rights to execute or something ?

misulica · 05-05-2008, 07:15 PM

any ideas ?

misulica · 05-06-2008, 06:00 AM

ok i fixed it..
aparently it had: safe_mode enabled by the Plesk admin pannel