%s', $field['id'], $field['name'], $desc ); } /** * Do not show field description. * * @param array $field * @return string */ public static function element_description( $field ) { return ''; } /** * 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'; $field['placeholder'] = wp_parse_args( (array) $field['placeholder'], array( 'key' => 'Key', 'value' => 'Value', ) ); 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 = '

'; foreach ( $value as $subvalue ) { $output .= sprintf( '
• %s: %s
', $subvalue[0], $subvalue[1] ); } $output .= '

'; return $output; } }