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Source View: post_gallery

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Understanding Source Code

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Remember, this hook may occur in more than one file. Moreover, the hook's context may change from version to version.

Source View

Line Code
990       * @since 2.5.0
991       * @since 4.2.0 The `$instance` parameter was added.
992       *
993       * @see gallery_shortcode()
994       *
995       * @param string $output   The gallery output. Default empty.
996       * @param array  $attr     Attributes of the gallery shortcode.
997       * @param int    $instance Unique numeric ID of this gallery shortcode instance.
998       */
999      $output = apply_filters( 'post_gallery', '', $attr, $instance );
1000      if ( $output != '' ) {
1001           return $output;
1002      }
1003
1004      $html5 = current_theme_supports( 'html5', 'gallery' );
1005      $atts = shortcode_atts( array(
1006           'order'      => 'ASC',
1007           'orderby'    => 'menu_order ID',
1008           'id'         => $post ? $post->ID : 0,