private static function _checkbox_list($field = [])
{
$old_value = get_option($field['id'], $field['std']);
if (!is_array($old_value)) {
$old_value = [];
}
foreach ($field['options'] as $option_key => $option_value) {
?>
<label>
<input type="checkbox" name="<?php
echo $field['id'];
?>
[]" value="<?php
echo $option_key;
?>
"<?php
checked(in_array($option_key, $old_value), true);
?>
/>
<?php
echo $option_value;
?>
</label><br />
<?php
}
?>
<?php
if (!empty($field['desc'])) {
?>
<p class="description"><?php
echo $field['desc'];
?>
</p>
<?php
}
}