DebugBundle Configuration ("debug")

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DebugBundle Configuration ("debug")

The DebugBundle allows greater integration of the VarDumper component in the Symfony full-stack framework and can be configured under the debug key in your application configuration. When using XML, you must use the namespace.


The XSD schema is available at



type: integer default: 2500

This is the maximum number of items to dump. Setting this option to -1 disables the limit.


type: integer default: -1

This option configures the maximum string length before truncating the string. The default value (-1) means that strings are never truncated.


type: string default: null

Configures the output destination of the dumps.

By default, the dumps are shown in the toolbar. Since this is not always possible (e.g. when working on a JSON API), you can have an alternate output destination for dumps. Typically, you would set this to php://stderr:

  • YAML
  • XML
  • PHP
# app/config/config.yml
   dump_destination: php://stderr
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