The alt text is stored as post meta on the attachment, and can be retrieved with get_post_meta() combined with get_post_thumbnail_id(): <?php echo get_post_meta( get_post_thumbnail_id(), ‘_wp_attachment_image_alt’, true ); ?> But if you just use the the_post_thumbnail() function then you don’t need to bother, the img tag will be output for you, with the alt text: <?php … Read more
From what you’ve described, it sounds like the theme doesn’t have an attachment.php template to handling displaying the actual attachment page. You check on the attachment page, by going to Appearance->Editor, and checking for an attachment.php; however, I believe that answer is incorrect. WordPress should default to displaying the image on the normal blog index … Read more
Determining if an attachment actually is a featured image is easy: get_post_thumbnail_id( get_post() ); which is a convenience function around get_post_meta( get_post()->ID, ‘_thumbnail_id’, true ); It is a bit more complicated if you know nothing than the File name or Url. add_filter( ‘wp_handle_upload_prefilter’, function( $file ) { $url = wp_get_attachment_image_src( get_post_thumbnail_id( get_post() ), ‘post-thumbnail’ ); … Read more
You are probably missing ImageMagick (PHP extension). Install it and the JPG artifacts will be gone.
Attachment 0×0 size error [closed]
Check the permissions on the file as it sits on the server. Try loading the image URL into a browser and see what error displays. Sometimes I can duplicate the image and reupload and it works. Just some things to try.
Although it shouldn’t change based on your theme, this may be an issue caused by how this new theme handles images. As of WordPress 3.5, when you add a media object such as an image, there’s a sidebar that appears on the right. Underneath the “Attachment Details” (preview, title, caption, etc.) there’s a section called … Read more
Testing the plugin provided in this Answer, I just saw that media_handle_sideload generates exactly this pattern, jpeg extension as well (instead of jpg). Following its path through the core, it seems that only the filter wp_handle_upload could be used for dealing with that. But a brief research shows an interesting use of wp_handle_upload_prefilter: Rename files … Read more
As pointed in the other answer, you should not have prettyPhoto part The link should be changed to utilize the function get_attachment_link Basically change this line in your code $link = ‘<a href=”‘.get_attachment_link($id).'”>’.wp_get_attachment_image($id, $size, false).'</a>’;
this code removes the wordpress native gallery in which shows thumbnails and calls the permalink to attachment.php where it shows the image by itself. the following code makes it a slider using a easy slider with limited animation and transition effects. 1. Calls the arguments for the transition effect and call the js $output .= … Read more