Which Framework to use Zend or Codeigniter ??

Why I recommend PHP Programmers to use CodeIgniter?

1. The main issue which I got attracted with CodeIgniter is its performance. CodeIgniter is faster than other popular PHP MVC frameworks. Take a look at these Benchmark test done by Rasmus Lerdorf(creator of PHP programming), here , here in here. And also take a look at another benchmark test . So it’s clear that CI is faster than other Framework. Rasmus also told that he liked CodeIgniter because it is faster, lighter and the least like a framework.
2. Another main reason behind recommendation, it has very low learning curve. CodeIgniter Downloads come with a tremendous user guide which is a great documentation like PHP Manual to begin with. And from my personal experience, CodeIgniter has very low learning curve compared to CakePHP and Zend Framework. If you’re a beginner for PHP frameworks then I recommend to go with CodeIgniter at begining.
3. The coding conventions are flexible and simple. Ironically, CakePHP has very strict coding conventions so you must be very careful about cases of characters while coding.
4. Why not Zend Framework and why CodeIgniter? Ok, one question goes here what is so good about Zend Framwork ? Eventual answer is ZF contain huge set of libraries and classes compared to any other framework. OK I agree, but another great news is that You can use Zend Framework’s classes in the CodeIgniter using hooks in CI. So you can use huge amount of Zend’s libraried in CI as well.