Checkboxes Fields
Checkboxes fields give you a group of checkboxes.
#Settings
Checkboxes fields have the following settings:
- Checkbox Options – Define the checkboxes that will be available in the field. You even get to set the option values and labels separately, and choose which ones should be checked by default.
 
#Development
#Querying Elements with Checkboxes Fields
When querying for elements that have a Checkboxes field, you can filter the results based on the Checkboxes field data using a query param named after your field’s handle.
Possible values include:
| Value | Fetches elements… | 
|---|---|
'foo' |  with a foo option checked. | 
'not foo' |  without a foo option checked. | 
['foo', 'bar'] |  with foo or bar options selected. | 
['and', 'foo', 'bar'] |  with foo and bar options selected. | 
{# Fetch entries with the 'foo' option checked #}
{% set entries = craft.entries()
  .myFieldHandle('foo')
  .all() %}
// Fetch entries with the 'foo' option checked
$entries = \craft\elements\Entry::find()
    ->myFieldHandle('foo')
    ->all();
#Working with Checkboxes Field Data
If you have an element with a Checkboxes field in your template, you can access its data using your Checkboxes field’s handle:
{% set value = entry.myFieldHandle %}
$value = $entry->myFieldHandle %}
That will give you a craft\fields\data\MultiOptionsFieldData (opens new window) object that contains the field data.
To loop through all checked options, iterate over the field value:
{% for option in entry.myFieldHandle %}
  Label: {{ option.label }}
  Value: {{ option }} or {{ option.value }}
{% endfor %}
foreach ($entry->myFieldHandle as $option) {
    // label: $option->label
    // value: $option or $option->value
}
To loop through all available options, iterate over the options (opens new window) property:
{% for option in entry.myFieldHandle.options %}
  Label:   {{ option.label }}
  Value:   {{ option }} or {{ option.value }}
  Checked: {{ option.selected ? 'Yes' : 'No' }}
{% endfor %}
foreach ($entry->myFieldHandle->options as $option) {
    // label:   $option->label
    // value:   $option or $option->value
    // checked: $option->selected ? 'Yes' : 'No'
}
To see if any options are checked, use the length (opens new window) filter or count (opens new window) method:
{% if entry.myFieldHandle|length %}
if (count($entry->myFieldHandle)) {
To see if a particular option is checked, use contains() (opens new window)
{% if entry.myFieldHandle.contains('foo') %}
if ($entry->myFieldHandle->contains('foo')) {
#Saving Checkboxes Fields
If you have an element form, such as an entry form (opens new window), that needs to contain a Checkboxes field, you can use this template as a starting point:
{% set field = craft.app.fields.getFieldByHandle('myFieldHandle') %}
{# Include a hidden input first so Craft knows to update the
   existing value, if no checkboxes are checked. #}
{{ hiddenInput('fields[myFieldHandle]', '') }}
<ul>
  {% for option in field.options %}
    {% set checked = entry is defined
      ? entry.myFieldHandle.contains(option.value)
      : option.default %}
    <li><label>
      <input type="checkbox"
        name="fields[myFieldHandle][]"
        value="{{ option.value }}"
        {% if checked %}checked{% endif %}>
      {{ option.label }}
    </label></li>
  {% endfor %}
</ul>