Why isn't Komodo working with my PHP 5.4 install?
Komodo 7.0.x is not compatible with PHP 5.4 yet. The new php_xdebug.* has not been release in the 7.0.x series.
You can either revert to PHP 5.3 until Komodo 7.1 is released
Download the Komodo Nightly build which has the new php_xdebug.* file which is PHP 5.4 friendly. You can download the nightly here.
If you're still having problems getting PHP to play nice with Komodo you may not have PHP fully configured. That's covered over here.
Komodo won't use my PHP install for debugging! Why?
WARNING! Failed to configure PHP debugging.
WARNING! Could not determine PHP version number.
You might have seen these errors before. You were installing PHP on your system and trying to run it in Komodo. This FAQ is to help you jump some configuration hurdles. It's easier than you think...
There you go. Now start writing some PHP!
NOTE: You do NOT need the Debug Pack download for debugging in Komodo. Just download the Zip.