%s',
$field['id'],
$field['name'],
$desc
);
}
/**
* Show end HTML markup for fields
* Do not show field description. Field description is shown before list of fields
*
* @param mixed $meta
* @param array $field
* @return string
*/
static function end_html( $meta, $field )
{
$button = $field['clone'] ? self::add_clone_button( $field ) : '';
$html = "$button
";
return $html;
}
/**
* Escape meta for field output
*
* @param mixed $meta
* @return mixed
*/
static function esc_meta( $meta )
{
foreach ( (array) $meta as $k => $pairs )
{
$meta[$k] = array_map( 'esc_attr', (array) $pairs );
}
return $meta;
}
/**
* Sanitize field value.
*
* @param mixed $new
* @param mixed $old
* @param int $post_id
* @param array $field
*
* @return string
*/
static function value( $new, $old, $post_id, $field )
{
foreach ( $new as &$arr )
{
if ( empty( $arr[0] ) && empty( $arr[1] ) )
$arr = false;
}
$new = array_filter( $new );
return $new;
}
/**
* Normalize parameters for field
*
* @param array $field
* @return array
*/
static function normalize( $field )
{
$field = parent::normalize( $field );
$field['clone'] = true;
$field['multiple'] = true;
$field['attributes']['type'] = 'text';
return $field;
}
/**
* Format value for the helper functions.
* @param array $field Field parameter
* @param string|array $value The field meta value
* @return string
*/
public static function format_value( $field, $value )
{
$output = '