images

Unexpected width and srcset attributes for the_post_thumbnail();

When generating the width and height attributes for an image with functions like the_post_thumbnail() or wp_get_attachment_image() the images are put through the image_downsize() function. The last thing this function does is run the image through the image_constrain_size_for_editor() function. This function decides the width and height of the image based on the given size, large in … Read more

How to grab first image attached to post and display in RSS feed?

i actually just finished working on a site that needed images in his feeds so i ended up using this: function ba_post_image_feeds($content) { global $post,$posts; $first_img = ”; ob_start(); ob_end_clean(); $output = preg_match_all(‘/<img.+src=[\'”]([^\'”]+)[\'”].*>/i’, $post->post_content, $matches); $first_img = $matches [1] [0]; if(!empty($first_img)){ $content=”<div>” . $first_img . ‘</div>’ . $content; } return $content; } add_filter(‘the_excerpt_rss’, ‘ba_post_image_feeds’); add_filter(‘the_content_feed’, … Read more

How can you upload an image from within a settings page?

WordPress provides a convenient function for just this purpose: wp_handle_upload(). Assuming that you already have the appropriate file form field in your settings page, and that you’re using register_setting() for your options, and therefore already have an options validation callback, simply handle the file form field data using wp_handle_upload(). Here’s an example: <?php // Validate … Read more

Use Media Library to manage galleries like Nextgen (with folders, albums, collections, tags, categories, terms…)

I’ve had this same problem for ages and have currently landed on the following combination of plugins to resolve the issue: Media Tags Tag Gallery Cleaner Gallery Additionally, I made two modifications to the tag gallery plugin (to remove TimThumb and allow reverse ordering) This solution still has a lot of downsides including that it … Read more

Preview Image Path in Admin Section

This is not a answer, is an extended comment with the link to the solution. First, while testing, one of my test sites wasn’t showing the Featured Image uploaded to the folder /wp-content/uploads/POST_ID/image_name.jpg. Same problem as the OP. But, it was not displaying any path to the image. And the bug was that the installation … Read more

Filter what image sizes get generated

Picking which image sizes to generate on a per-upload basis is definitely going to be a bit involved. However, if you’re okay with just entirely removing default image sizes, you have a couple of options, as described in this article: The simplest way is to set the default image height and width to ‘0’ at … Read more

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