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Message: [QUOTE="Marc Weber, post: 4658291"] Â - you never know when syntax or similar errors occur.. If you compare PHP with Java you can extend abstract classes in PHP which will give a runtime error. I'm sure there are some PHP analysis tools which can detect this kind of error before running your web application. He thanks. I only knew about create_function. For those who are to lazy to look it up (PHP lambda summary): Syntax looks like this: [static] function (/*args*/) use (&$x, $y) { /* body */ }; You can use "use" to put vars into the scope of the function body. Note that & will create references to the var, no matter which type its contents has. If you don't use "use" vars which are also present in outer scope will be null.. [static] is used to not include the $this reference. So maybe PHP get's closer. Can you do this as well now? echo new FooBar()->fun(); About parallelism: I only used ruby to run some php -l commands to check syntax in parallel. It's perfect for this kind of task: Create a quick work list, start 3 threads and pop items off from that list. That's why I recommended learning Ruby rather than PHP. Because PHP can't get this job done although it is a scripting language. Marc Weber [/QUOTE]