# yii\debug\collectors

> 13 classes of the yii\debug\collectors namespace.

[API reference](/docs/api/index.md) › [Debug](/docs/extensions/debug/reference/index.md) › collectors

## Classes

| Class | Summary |
| --- | --- |
| [`AssetCollector`](/docs/extensions/debug/reference/collectors/assetcollector/index.md) | Captures the asset bundles registered on the request for the Asset Bundles panel. |
| [`Collector`](/docs/extensions/debug/reference/collectors/collector/index.md) abstract | Base class for the Yii2 debug collectors. |
| [`ConfigCollector`](/docs/extensions/debug/reference/collectors/configcollector/index.md) | Captures the application configuration and runtime environment for the Configuration panel. |
| [`DbCollector`](/docs/extensions/debug/reference/collectors/dbcollector/index.md) | Captures every database query emitted during the request for the Database panel. |
| [`DumpCollector`](/docs/extensions/debug/reference/collectors/dumpcollector/index.md) | Captures trace-level log messages emitted by `Yii::debug()` for the Dump panel. |
| [`EventCollector`](/docs/extensions/debug/reference/collectors/eventcollector/index.md) | Captures framework events reaching the global listener during the request for the Events panel. |
| [`LogCollector`](/docs/extensions/debug/reference/collectors/logcollector/index.md) | Captures error, warning, info, and trace log messages emitted during the request for the Logs panel. |
| [`MailCollector`](/docs/extensions/debug/reference/collectors/mailcollector/index.md) | Captures every mail message dispatched during the request for the Mail panel. |
| [`ProfilingCollector`](/docs/extensions/debug/reference/collectors/profilingcollector/index.md) | Captures profile-level log messages emitted by `Yii::beginProfile()` for the Profiling panel. |
| [`QueueCollector`](/docs/extensions/debug/reference/collectors/queuecollector/index.md) | Captures every queue lifecycle event (`afterPush`, `afterExec`, `afterError`) emitted by any class extending `yii\queue\Queue` from `yiisoft/yii2-queue`. |
| [`RequestCollector`](/docs/extensions/debug/reference/collectors/requestcollector/index.md) | Captures the HTTP request and response state for the Request panel. |
| [`RouterCollector`](/docs/extensions/debug/reference/collectors/routercollector/index.md) | Captures the routing trace of the request for the Router panel. |
| [`UserCollector`](/docs/extensions/debug/reference/collectors/usercollector/index.md) | Captures the authenticated identity for the User panel. |