The Yii Debug Toolbar is a configurable set of panels that display various debug information about the current request/response and when clicked, display more details about the panel's content.

It is a ported to PHP famous Django Debug Toolbar.

Currently, the following panels have been written and are working:

• Server info
• Request timer
• A list of superglobals
• Application settings
• SQL queries including time to execute and param bindings
• Logging output via Yii built-in logging

Extract the yii-debug-toolbar from archive under protected/extensions

For use yii-debug-toolbar need to specify new route in log component:

<?php
//...
    'log'=>array(
        'class'=>'CLogRouter',
        'routes'=>array(
            array(
                'class'=>'ext.yii-debug-toolbar.YiiDebugToolbarRoute',
                // Access is restricted by default to the localhost
                //'ipFilters'=>array('127.0.0.1','192.168.1.*', 88.23.23.0/24),
            ),
        ),
    ),

• Make sure your IP is listed in the ipFilters setting. If you are working locally this option not required.
• Enable Profiling and ParamLogging for all used DB connections.

<?php
//...
	'db'=>array(
	    'connectionString' => 'mysql:host=localhost;dbname=test',
	    //...
	    'enableProfiling'=>true,
	    'enableParamLogging'=>true,
	),

See: issues