^^&&^^

Edit File: checkbox.php

<?php if ( ! defined( 'ABSPATH' ) ) { die; } // Cannot access directly.

/**

* Field: checkbox

* @since 1.0.0

* @version 1.0.0

if ( ! class_exists( 'CSF_Field_checkbox' ) ) {

class CSF_Field_checkbox extends CSF_Fields {

public function __construct( $field, $value = '', $unique = '', $where = '', $parent = '' ) {

parent::__construct( $field, $value, $unique, $where, $parent );

}

public function render() {

$args = wp_parse_args( $this->field, array(

'inline'     => false,

'query_args' => array(),

) );

$inline_class = ( $args['inline'] ) ? ' class="csf--inline-list"' : '';

echo $this->field_before();

if ( isset( $this->field['options'] ) ) {

$value   = ( is_array( $this->value ) ) ? $this->value : array_filter( (array) $this->value );

$options = $this->field['options'];

$options = ( is_array( $options ) ) ? $options : array_filter( $this->field_data( $options, false, $args['query_args'] ) );

if ( is_array( $options ) && ! empty( $options ) ) {

echo '<ul'. $inline_class .'>';

foreach ( $options as $option_key => $option_value ) {

if ( is_array( $option_value ) && ! empty( $option_value ) ) {

echo '<li>';

echo '<ul>';

echo '<li><strong>'. esc_attr( $option_key ) .'</strong></li>';

foreach ( $option_value as $sub_key => $sub_value ) {

$checked = ( in_array( $sub_key, $value ) ) ? ' checked' : '';

echo '<li>';

echo '<label>';

echo '<input type="checkbox" name="'. esc_attr( $this->field_name( '[]' ) ) .'" value="'. esc_attr( $sub_key ) .'"'. $this->field_attributes() . esc_attr( $checked ) .'/>';

echo '<span class="csf--text">'. esc_attr( $sub_value ) .'</span>';

echo '</label>';

echo '</li>';

}

echo '</ul>';

echo '</li>';

} else {

$checked = ( in_array( $option_key, $value ) ) ? ' checked' : '';

echo '<li>';

echo '<label>';

echo '<input type="checkbox" name="'. esc_attr( $this->field_name( '[]' ) ) .'" value="'. esc_attr( $option_key ) .'"'. $this->field_attributes() . esc_attr( $checked ) .'/>';

echo '<span class="csf--text">'. esc_attr( $option_value ) .'</span>';

echo '</label>';

echo '</li>';

}

echo '</ul>';

} else {

echo ( ! empty( $this->field['empty_message'] ) ) ? esc_attr( $this->field['empty_message'] ) : esc_html__( 'No data available.', 'csf' );

}

} else {

echo '<label class="csf-checkbox">';

echo '<input type="hidden" name="'. esc_attr( $this->field_name() ) .'" value="'. $this->value .'" class="csf--input"'. $this->field_attributes() .'/>';

echo '<input type="checkbox" name="_pseudo" class="csf--checkbox"'. esc_attr( checked( $this->value, 1, false ) ) . $this->field_attributes() .'/>';

echo ( ! empty( $this->field['label'] ) ) ? '<span class="csf--text">'. esc_attr( $this->field['label'] ) .'</span>' : '';

echo '</label>';

}

echo $this->field_after();

}