eval sandbox

[Duder]

Hello. I have some functions that I utilize an eval to run. I need to currently run things this way, so rebuilding right now isn't an option. Anyway, I was wondering if there were a way to determine if a passed in parameter (function name and its parameters) were valid and only do an eval if they are...something like the following:

###defined functions###
function helloworld()
{
print "Hello, world";
}

#################

###other script###

$passedfunction="helloworld";

If($passedfunction==valid function for scripts/app)
{
eval($passedfunction.";");
}
else
{
die("Not a valid local function");
}

#################

[frigidman]

Do another eval:

$evalstring = '$exists = function_exists(\''.$passedfunction.'\');';
eval($evalstring);
if ($exists) {
//do your stuff
}

[frigidman]

Oh wait, that was overkill... sorry 😃

Just do this:

if (function_exists($passedfunction)) {
//do your stuff
}