Dynamically generate classes at runtime in php?

Question

Here\'s what I want to do:

$clsName = substr(md5(rand()),0,10); //generate a random name
$cls = new $clsName(); //create a new instance

function __autoload(         


        

Answer 1

its funny, actually this is one of the few things where eval doesnt seem such a bad idea.

as long as you can ensure that no user input will ever enter the eval.

you still have downsides like when your using a bytecode cache that code wont be cached etc etc. but the security issues of eval are pretty much related to having user inputy in the eval, or to ending up in the wrong scope.

if you know what you are doing, eval will help you with this.

That said, in my opinion you are much better off when you no rely on type-hinting for your validation, but you have one function

DoSomething_Validate($id)
{ 
   // get_class($id) and other validation foo here
}