find if exec is enabled

[xhunter]

I am working on a script for my users, in which at a part of it i want to let them know if "exec" command is enabled and can be used in their server,
is that possible?

[Atli]

Hi.

The documentation doesn't mention the possibility that the exec (or other similar functions) can be disabled.

The only thing I can think of is to use the function_exists function to check if the exec function exists.

[xhunter]

Hi.

The documentation doesn't mention the possibility that the exec (or other similar functions) can be disabled.

The only thing I can think of is to use the function_exists function to check if the exec function exists.

many hosts do disable it,
i think it works like adding it to the php.ini :
[PHP]disable_functio ns = exec[/PHP]

I am not sure that "function_exist s" would really work, and since my host has it disabled and I don't have access to a host with exec enabled, I can't check it.

I was wondering if a way is known to check for it.

edit:
disabled/enabled, i think it returns that the function exists, but when disabled, it doesn't work.

[Atli]

You could always just try to use it and see if it works.

Like, for example:
[code=php]
function checkExec() {
# Check if the function exists
if(!function_ex ists("exec")) {
return false;
}

# Check if the function works
exec("echo enabled", $output);
if($output[0] == "enabled") {
return true;
} else {
return false;
}
)
[/code]

[xhunter]

You could always just try to use it and see if it works.

Like, for example:
[code=php]
function checkExec() {
# Check if the function exists
if(!function_ex ists("exec")) {
return false;
}

# Check if the function works
exec("echo enabled", $output);
if($output[0] == "enabled") {
return true;
} else {
return false;
}
)
[/code]

thanks, I will use that, hope it works with no errors,
i can't be sure of anything unless I could try it for every situtation