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41 Tips for optimizing your php code

1. If a method can be static, declare it static. Speed improvement is by a factor of 4.

2. echo is faster than print.

3. Use echo’s multiple parameters instead of string concatenation.

4. Set the maxvalue for your for-loops before and not in the loop.

5. Unset your variables to free memory, especially large arrays.

6. Avoid magic like __get, __set, __autoload

7. require_once() is expensive

8. Use full paths in includes and requires, less time spent on resolving the OS paths.

9. If you need to find out the time when the script

8 Ways To Protect And Obfuscate Your .Net Code Against Reverse-Engineering Using Crypto Obfuscator

Introduction
Most non-.Net compilers emit binary programs containing native CPU instructions which are very hard to disassemble, decompile and reverse-engineer. However, all .Net compilers such as C#, VB.Net, Managed C++, IronPyhton, etc emit compiled programs in MSIL (Microsoft Intermediate Language) format. This format preserves a lot of high-level information about your software such as class, field, method, property and parameter names and even the actual code in a well-defined structure. This has facilitated the development of many decompilers and dissassemblers