images - Read For Learn

Creating a rotating header /image slider using theme customization

We can do that! First, you’ll need to add a custom section on the Theme Customizer, containing all the image uploads (we’ll use 3 for this example): add_action( ‘customize_register’, ‘themename_customize_register’ ); function themename_customize_register($wp_customize) { $wp_customize->add_section( ‘slides’, array( ‘title’ => ‘Slides’, ‘priority’ => 25, ) ); $wp_customize->add_setting( ‘first_slide’, array( ‘default’ => ”, ) ); $wp_customize->add_control( new … Read more

Get attachment ID of author_meta image – Attachment Metadata

I suggest you to use the more newer media manager dialog; WordPress will hanlde all the image upload stuff, including generating intermediate sizes and attachement metadata. Here a working example (it is a quick example built from a previous code, it may needs some tweaks to be used on production): add_action( ‘admin_enqueue_scripts’, ‘load_wp_media_files’ ); function … Read more

“There has been an error cropping your image” when cropping image

There is too little information to be completely sure, but usually this error occurs when WordPress cannot find the graphic library which should be installed on your server. So you should check with your provider to see if Imagick and/or GD are installed. You can also add this little snippet of code in your functions.php … Read more

Images uploading to wrong folder

Tony, are you creating a new post or editing an older post from 2010/07? I’ve found that the folder relates to when the post/page was created initially.

How do you modify the HTML output of a Gallery item (using the gallery shortcode)?

Let’s assume that your theme is NOT rolling its own gallery shortcode, and let’s assume that you’re using the shortcode rather than the ‘gallery’ post format here. What you’re looking for is the ‘gallery_shortcode’ function within wp-includes/media.php around line 750 (as of 3.3.1). That’s where the HTML output of your gallery items is hard-coded. Of … Read more

Strange img srcset behaviour

After some further digging, I discovered that the max srcset size in WordPress 4.4 is set to 1600px wide by default. You can fix this by adding the following filter: add_filter( ‘max_srcset_image_width’, ‘max_srcset_image_width’, 10 , 2 ); function max_srcset_image_width() { return 2048; } The helper function and this information is thanks to: http://aaronrutley.com/responsive-images-in-wordpress-with-acf

Making WordPress Gallery (.gallery-item) Responsive?

There is a simple solution for this. Let the gallery use the 5 column grid system and using the @media-queries we can alter it for tablet and mobile. I just tested it on your given URL and it works perfect. But try to remove any custom codes you have used before since I had to … Read more

add_image_sizes ignoring crop sizes and using proportion

WordPress “crop” doesn’t literally mean crop. As in take an image and cut out this precise portion of it from specified point. What it roughly means is: resize image to fit as well as possible, then crop parts that don’t fit. In effect this meant that results are affected by ratio both of source image … Read more

Set Custom Post feature image as og:image

It appears that your site doesn’t use the core WordPress Featured Image feature but instead uses a custom image field (probably from Advanced Custom Fields). Yoast’s plugin, Jetpack, and presumably many others look for the Featured Image image when setting the opengraph meta tag. So you have two options: Use the core Featured Image feature … Read more

+ More