Symfony\Component\Config\Definition\Builder\ArrayNodeDefinition

Constructor

Sets a prototype for child nodes.

Adds the default value if the node is not set in the configuration.

This method is applicable to concrete nodes only (not to prototype nodes).
If this function has been called and the node is not set during the finalization
phase, it's default value will be derived from its children default values.

Adds children with a default value when none are defined.

Requires the node to have at least one element.

This method is applicable to prototype nodes only.

Disallows adding news keys in a subsequent configuration.

If used all keys have to be defined in the same configuration file.

Sets a normalization rule for XML configurations.

Sets the attribute which value is to be used as key.

This is useful when you have an indexed array that should be an
associative array. You can select an item from within the array
to be the key of the particular item. For example, if "id" is the
"key", then:

array(
array('id' => 'my_name', 'foo' => 'bar'),
);

becomes

array(
'my_name' => array('foo' => 'bar'),
);

If you'd like "'id' => 'my_name'" to still be present in the resulting
array, then you can set the second argument of this method to false.

This method is applicable to prototype nodes only.

Sets whether the node can be unset.

Adds an "enabled" boolean to enable the current section.

By default, the section is disabled. If any configuration is specified then
the node will be automatically enabled:

enableableArrayNode: {enabled: true, ...} # The config is enabled & default values get overridden
enableableArrayNode: ~ # The config is enabled & use the default values
enableableArrayNode: true # The config is enabled & use the default values
enableableArrayNode: {other: value, ...} # The config is enabled & default values get overridden
enableableArrayNode: {enabled: false, ...} # The config is disabled
enableableArrayNode: false # The config is disabled

Adds an "enabled" boolean to enable the current section.

By default, the section is enabled.

Disables the deep merging of the node.

Allows extra config keys to be specified under an array without throwing an exception.

Those config values are simply ignored. This should be used only
in special cases where you want to send an entire configuration
array through a special tree that processes only part of the array.

Sets key normalization.