Question

When I’m trying to execute a PHP script using shell_exec(), it’s not working.

In the error_log file it shows:

PHP Warning: shell_exec() [function.shell-exec]: Unable to execute
‘php /home/snabbsam/public_html/…..

System
Centos

shell_exec works with clamscan
shell_exec() works on clamscan() function of clamav.
But it’s not executing PHP script

Things I’ve checked:

• PHP safe_mode is off
• shell_exec() is not present in disable_functions in php.ini
• Tried giving executable permission to the file & the parent folders as suggested in https://stackoverflow.com/a/8668666/402089

Answer 1

Try adding a full path to where the executable for php is in your shell_exec call, just in case it’s in a directory that’s not accessible by default for the webserver user.