Abrufen des Attributs Bildtitel / Alt aus dem Galerie-Shortcode

Ich versuche zu lernen,wieman PHP codiert,damitich die Bildergaleriein WordPress (unter anderem) anpassen kann.

Der Code,denich habe,eignet sich hervorragendfüreine stilisierte Galerieseite, aberesfälltmir schwer,herauszufinden,wieich die Titel- und Alt-Attribute der Bilderin der WP-Galerieerhalte (ich vermute Dies liegt daran,dass die Bildernicht als Anhänge zum Beitrag angesehen werden,da sie sichin der Galeriefunktionbefinden.

Undichmöchte die WP-Galerie verwenden,daich diesein WPintegrierte Funktionalitätfür Galerien verwendenmöchte.

Jede Hilfe wirdgeschätzt ...ist dies die dümmste Art,etwas zutun,oder was?

Hinweis: get_attachment oderget_children warenebenfalls katastrophal,wenn versucht wurde,Bilder aufeiner Seite zubearbeiten,wenn die WP-Galerie NICHTin den alten Anhängen oder untergeordneten Elementen verwendet wurde,die von der Seiteentfernt wurden. .

 <?php if (have_posts()): while (have_posts()) : the_post(); ?>

<div class="gallery-wrapper three-cols clearfix">

  <?php // image gallery content 
    if( has_shortcode( $post->post_content, 'gallery' ) ) {   

       // Add a filter for full gallery size:
       add_filter( 'shortcode_atts_gallery','wpse_full_size_gallery' );


$gallery = get_post_gallery_images( $post->ID );

       // Remove the filter:
       remove_filter( 'shortcode_atts_gallery','wpse_full_size_gallery' );  

foreach ( $gallery as $image_url ) {
        $alt = get_post_meta($attachment->ID, '_wp_attachment_image_alt', true);
            $image_title = $attachment->post_title;


            echo '<div class="one-third columns gallery-item">';
            echo '<div class="item-picture" data-type="image">';
            echo '<img src="' . $image_url . '">' ;
            echo '<div class="image-overlay">';
            echo '<a href="' . $image_url . '" data-rel="prettyPhoto[gallery]"><span class="zoom"></span></a>';
             echo '</div>';
             echo '<span class="item-label">' . $image_title . '</span>';
             echo '</div>';
             echo '</div>';

        }

}                         
?>

  </div>
        <!-- article -->
        <article class="full-width columns" id="post-<?php the_ID(); ?>" <?php post_class(); ?>>
            <br class="clear">

            <?php edit_post_link(); ?>

        </article>
        <!-- /article -->

    <?php endwhile; ?>

    <?php else: ?>

        <!-- article -->
        <article>

            <h2><?php _e( 'Sorry, nothing to display.', 'html5blank' ); ?></h2>

        </article>
        <!-- /article -->

        <?php endif; ?>            
 

I am trying to learn how to code php so that I can customize the image gallery within WordPress (among other customizations).

The code I have works great for a stylized gallery page, but having a difficult time trying to figure out how to get the title and alt attributes of the images within the WP gallery (I am guessing it's because the images are not seen as attachments to the post since they are in the gallery function).

And I would like to use the WP gallery, as I want to use that WP built-in functionality for galleries.

any help is appreciated... is this the dumbest way of doing something or what?

Note: get_attachment or get_children has been disastrous too when trying to edit images on a page when NOT using the WP gallery in that old attachments or children that have been removed from the page still show up).

<?php if (have_posts()): while (have_posts()) : the_post(); ?>

<div class="gallery-wrapper three-cols clearfix">

  <?php // image gallery content 
    if( has_shortcode( $post->post_content, 'gallery' ) ) {   

       // Add a filter for full gallery size:
       add_filter( 'shortcode_atts_gallery','wpse_full_size_gallery' );


$gallery = get_post_gallery_images( $post->ID );

       // Remove the filter:
       remove_filter( 'shortcode_atts_gallery','wpse_full_size_gallery' );  

foreach ( $gallery as $image_url ) {
        $alt = get_post_meta($attachment->ID, '_wp_attachment_image_alt', true);
            $image_title = $attachment->post_title;


            echo '<div class="one-third columns gallery-item">';
            echo '<div class="item-picture" data-type="image">';
            echo '<img src="' . $image_url . '">' ;
            echo '<div class="image-overlay">';
            echo '<a href="' . $image_url . '" data-rel="prettyPhoto[gallery]"><span class="zoom"></span></a>';
             echo '</div>';
             echo '<span class="item-label">' . $image_title . '</span>';
             echo '</div>';
             echo '</div>';

        }

}                         
?>

  </div>
        <!-- article -->
        <article class="full-width columns" id="post-<?php the_ID(); ?>" <?php post_class(); ?>>
            <br class="clear">

            <?php edit_post_link(); ?>

        </article>
        <!-- /article -->

    <?php endwhile; ?>

    <?php else: ?>

        <!-- article -->
        <article>

            <h2><?php _e( 'Sorry, nothing to display.', 'html5blank' ); ?></h2>

        </article>
        <!-- /article -->

        <?php endif; ?>