Extending PHP to OOP

Hi PHP guys, I compared C++/Java and PHP and then tried to find the most urgently required features for extending PHP towards OOP. Here's my conclusion. I judged Yes/No according to my personal experience on Java and C++. Let us call the resultant language PHP+. (Not PHP++ why? because it's not that much extended). I think some body may write a preprocessor in PHP, which converts a PHP+ scripts into normal PHP scripts. * abstract class - No * final class - No * nested class - No * anonymous class - No * private member/method - No * protected member/method - No * public member/method - Yes (by default) * friend method - No * static member/method - Yes * synchronized method - No * function/method overloading - Yes (distinguish according to the number of arguments) * operator overloading - No * virtual(abstract) method - Yes * delete operator - No (Use 'finalize' instead) * class finalizer (destructor) - Yes * class clone/serialize - Yes * class equals - Yes * class main - Yes * try/throw/throws/catch/finally - No * multiple inheritance - No * interface - Yes (pure virtual[abstract] class) * implements - Yes (allows work around multiple inheritance) * package - Yes (allows large-scale development) * import (use) package - Yes * instanceof operator - Yes * sizeof operator - No?? * template - No (Speed isn't that much important.) * inline function/method - No * native functions - No * asm - No * const variable - Yes * static variable - Yes * extern (global) variable - Yes * volatile variable - No * transient variable - No * register variable - No * auto variable - No * structure/union - No (class suffices) * typedef - No