i was searching for a php console i can attach it with firefox to instantly debug , but a break points and so on so i can develop faster and find bugs and errors faster
i found awesome addon to firefox called firephp , its attached to famous firefox addon firebug
simply you need :
firefox , firebug , firephp
and just include the firephp class into your code

require_once('FirePHPCore/FirePHP.class.PHP');
$firephp = FirePHP::getInstance(true);

for more information you can  go to the official website http://www.firephp.org or this awesome tutorial http://sixrevisions.com/web-development/how-to-debug-php-using-firefox-with-firephp/