Get Featured Image Metadata for Current Post

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This creates a shortcode that returns the requested metadata item for the current posts' featured image. The item values that can be returned are alt, title, caption, description, or url.

Language

PHP

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How to Setup Snippet

// Examples of Use: // [get_featured_image_metadata get="alt" /] --> returns the alt text for the featured image // --- // [get_featured_image_metadata get="title"] // Formatted {metadata} output. // [/get_featured_image_metadata] --> returns "Formatted image_title output."

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Jemully-Media

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History

Last modified:

04/05/2023

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Get Featured Image Metadata for Current Post

 
                     1//========================================================================//
 2function get_featured_image_metadata_shortcode( $atts, $content = "" ) {
 3  // --------------------------------------------------------------------------------
 4  // Examples of Use:
 5  //   [get_featured_image_metadata get="alt" /] --> returns the alt text for the featured image
 6  //   [get_featured_image_metadata get="title"]
 7  //     Format {metadata} output.
 8  //   [/get_featured_image_metadata] --> returns "Format image_title output."
 9  // --------------------------------------------------------------------------------
10 
11  $output = "";
12  $val = "";
13 
14  // Get current post's featured image
15  $featured_image = wp_get_attachment_image_src( get_post_thumbnail_id(), 'full' );
16 
17  // Get featured image meta data
18  $post_alt         = get_post_meta( get_post_thumbnail_id(), '_wp_attachment_image_alt', true );
19  $post_title       = get_the_title();
20  $post_caption     = get_the_post_thumbnail_caption();
21  $post_description = get_post( get_post_thumbnail_id() )->post_content;
22  $post_file_url    = $featured_image[0];
23 
24  // This grabs any content that was supplied between the shortcode tags
25  $content = trim($content); // This is the content found between shortcode tags (see example above)
26 
27  // Get which metadata is requested: alt, title, caption, desc, url
28  $get = (isset($atts["get"]) ? trim(strtolower($atts["get"])) : "");
29 
30  switch($get) {
31    case "alt": $val = $post_alt; break;
32    case "title": $val = $post_title; break;
33    case "cap":
34    case "caption": $val = $post_caption; break;
35    case "description":
36    case "desc": $val = $post_description; break;
37    case "url": $val = $post_file_url; break;
38  }
39 
40  $content = str_replace("{metadata}", $val, $content);
41 
42  $output = ($content === "" ? $val : $content);
43 
44  return $output; // Return the output to the website
45 
46  // --------------------------------------------------------------------------------
47}
48add_shortcode( 'get_featured_image_metadata', 'get_featured_image_metadata_shortcode' );
49//========================================================================//

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