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1. Scofield
   Member
   Posted 2 years ago #

   Hello, I have a question. How can I change thumbnail title and alt in my theme?

   Now I have in index.php
   <?php the_post_thumbnail(array(150,150)); ?>
   and in functions.php
   

   add_theme_support('post-thumbnails');
   add_filter( 'post_thumbnail_html', 'my_post_image_html', 10, 3 );
   
   function my_post_image_html( $html, $post_id, $post_image_id ) {
   
   	$html = '<a href="' . get_permalink( $post_id ) . '" title="' . esc_attr( get_post_field( 'post_title', $post_id ) ) . '">' . $html . '</a>';
   
   	return $html;
   }

   Thanks for reply :)

2. Scofield
   Member
   Posted 2 years ago #

   Nobody knows? :(

3. dmautz
   Member
   Posted 2 years ago #

   I am also trying to find where to get the thumbnail title and also the caption text.

4. Okoth1
   Member
   Posted 2 years ago #

   Stop looking further guys. It's not possible.

5. Kruncher
   Member
   Posted 1 year ago #

   You can do this using regular expressions. I have not tested the second example, but the first is practically pasted from a blog that I have been working on.

   add_filter( 'post_thumbnail_html', 'my_post_image_html', 10, 3 );
   function my_post_image_html( $html, $post_id, $post_image_id ) {
   	// Example: Use post title instead of image title.
   	$post_title = esc_attr( get_post_field( 'post_title', $post_id ) );
   	// Replace image title with post title.
   	$html = preg_replace( '/(<img[^>]*title\s*=\s*)"[^"]*"|\'[^\']*\'/', '$1"'.$post_title.'"', $html, 1 );
   
   	// Example: Use "Post Thumbnail" for "alt".
   	$html = preg_replace( '/(<img[^>]*alt\s*=\s*)"[^"]*"|\'[^\']*\'/', '$1"Post Thumbnail"', $html, 1 );
   
   	return $html;
   }

   I hope that this is of use.

6. walterdevos
   Member
   Posted 1 year ago #

   There is another way too:
   Change the attributes of thePostThumbnail in the template (index,page,..)
   for the alt use array alt
   

   thePostThumbnail(array('alt' => ''.get_the_title().''));

   for the title use array title
   

   thePostThumbnail(array('title' => ''.getTheTitle().''));

   no need to change stuff in the functions.php

   You can add lots of parameters, for example:
   

   the_post_thumbnail( 'thumbnail', array('class' => 'alignleft post_thumbnail', 'style' => 'width: 186px;', 'alt' => 'no alt', 'title' => ''.get_the_title().'' ));

7. Kruncher
   Member
   Posted 1 year ago #

   Thanks walterdevos! That is really useful to know!

8. 1nameleft
   Member
   Posted 1 year ago #

   Thanks, I needed this as well

9. chill3d
   Member
   Posted 1 year ago #

   @walterdevos: thanks a lot!

10. leesal
    Member
    Posted 1 year ago #

    @walterdevos
    Ahh! this has been driving me nuts. Thanks for the solution!

11. anthonymasure
    Member
    Posted 1 year ago #

    Thank you very much walterdevos !

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