Hello
Anyone can recommend me the best php IDEs available which also provide support for frameworks like zend or codeigniter?

NetBeans, definitely.

Others may say Eclipse or Aptana, but I personally prefer NetBeans for PHP. Netbeans also supports Zend, CodeIgniter, Symfony, as well as others via plugins.

I recomend you Codelobster PHP Edition.
It's most powerful among free code editors.
Some advantages of this editor are: intellectual autocomplete, FTP,
folding code, navigation with Ctrl for all links and descriptions and
incremental searching
Important feature of this editor is presence of special plugins for
Drupal CMS, Joomla CMS, Smarty template engine, JQuery library, CodeIgniter framework,
CakePHP framework, Facebook social network and WordPress blogging platform.

Also i want to pay your attention to the option Portable
http://www.codelobster.com

I recomend you Codelobster PHP Edition.
It's most powerful among free code editors.
Some advantages of this editor are: intellectual autocomplete, FTP,
folding code, navigation with Ctrl for all links and descriptions and
incremental searching
Important feature of this editor is presence of special plugins for
Drupal CMS, Joomla CMS, Smarty template engine, JQuery library, CodeIgniter framework,
CakePHP framework, Facebook social network and WordPress blogging platform.

Also i want to pay your attention to the option Portable
http://www.codelobster.com

Cannot beat Netbeans or Aptana both of which are free!

thanks kosmodamien and evstevemd for your inputs