Debugger port. This is the port that XDebug uses,
as set in php.ini. By default it is port 9000. The port number
in this dialog must be the same as the debugger port you set
in php.ini. You cannot affect the port that XDebug uses in
this dialog. You only inform NetBeans IDE of the port that
XDebug uses.
Session ID. Arbitrary name of the debugging session.
By default it is netbeans-xdebug. This value is important to note
in cases where you have to set the xdebug.idekey property
in php.ini, such as some remote debugging scenarios.
Stop at First Line. Tick this option for the debugger
session to stop at the first line of code instead of at the first
breakpoint. This keeps your screen focused in the IDE instead of
switching to a browser window when you launch a debugging session.
Watches and Balloon Evaluation. Due to a number
of bugs, watches and balloon evaluation is disabled by default.
See the following issue for more details.
Maximum Depth of Structures. Sets the visibility of nested structures (such as nested arrays, objects in objects, etc.)
Maximum Number of Children. Sets the visibility of array items during Watch evaluation. (If you set Maximum Number of Children to 1 you will see only the first item of an array even if the array has more then one item.)
Show Requested URLs. Opens new Output window during debugging. This Output window is named PHP Requested Urls and it shows currently processed URLs. The URLs are clickable. Click on a URL in the Output window to open the URL in a browser window.
Show Debugger Console. Opens new Output window that shows the output of debugged scripts.
Set output_buffering = Off in your php.ini file. Otherwise there will be a delay in seeing script output in the Output window.