Shared Field Attributes

These attributes are available on most Kavro fields. Individual fields may support extra attributes, documented in their dedicated files.

Attribute	Type	Description
`id`	string	Required for data-saving fields. Unique key inside the option/meta array.
`type`	string	Required. Field type slug, for example `text`, `select`, or `repeater`.
`title`	string	Main field label displayed in the left column.
`subtitle`	string	Small helper text below the field title.
`desc`	string/html	Description displayed below the control. Limited HTML is allowed.
`default`	mixed	Default value used when there is no saved value yet.
`placeholder`	string	Placeholder text for input/select-like fields when supported.
`class`	string	Optional custom CSS class for custom integrations.
`dependency`	array	Conditional visibility rules. Example: `[ "field" => "enable", "operator" => "==", "value" => 1 ]`.
`sanitize_callback`	callable	Custom sanitizer callback. Receives `$value` and `$field`.

Dependency syntax

Use dependency to show/hide a field based on another field value.

array(
    'id'         => 'button_text',
    'type'       => 'text',
    'title'      => 'Button Text',
    'dependency' => array(
        'field'    => 'enable_button',
        'operator' => '==',
        'value'    => 1,
    ),
)

Recommended operators: ==, !=, contains, empty, not_empty, >, <, >=, <=.

Custom sanitization

array(
    'id'                => 'tracking_id',
    'type'              => 'text',
    'title'             => 'Tracking ID',
    'sanitize_callback' => function( $value, $field ) {
        return sanitize_text_field( $value );
    },
)