Debug Configuration Reference (DebugBundle)
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Read the updated version of this page for Symfony 7.1 (the current stable version).
The DebugBundle integrates the VarDumper component
in Symfony applications. All these options are configured under the debug
key in your application configuration.
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# displays the default config values defined by Symfony
$ php bin/console config:dump-reference debug
# displays the actual config values used by your application
$ php bin/console debug:config debugNote
When using XML, you must use the http://symfony.com/schema/dic/debug
namespace and the related XSD schema is available at:
https://symfony.com/schema/dic/debug/debug-1.0.xsd
Configuration
max_items
type: integer default: 2500
This is the maximum number of items to dump. Setting this option to -1
disables the limit.
min_depth
3.4
The min_depth option was introduced in Symfony 3.4.
type: integer default: 1
Configures the minimum tree depth until which all items are guaranteed to
be cloned. After this depth is reached, only max_items items will be
cloned. The default value is 1, which is consistent with older Symfony
versions.
max_string_length
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.
dump_destination
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:
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# app/config/config.yml
debug:
dump_destination: php://stderr
