Image alt attributes in WordPress
The metadata for images uploaded to WordPress includes alt attributes. alt attributes are used to describe the content of an image for users who may not be able to view the image or are using assistive technologies such as screen readers.
How to get alt attributes
The way to get the alt attribute of an image in WordPress is to use the get_post_meta function. Specifically, use the following
get_post_meta($id, '_wp_attachment_image_alt', true);where $id is the post ID of the image. The second argument, ‘_wp_attachment_image_alt’, retrieves the alt attribute. The last argument, true, is used to retrieve the return value as a single text. If false is specified, the return value will be an array.
Usage Example
For example, if you have the ID of a particular image, the code to retrieve the alt attribute of that image would be as follows
$image_id = 123; // ID of the image
$alt_text = get_post_meta($image_id, '_wp_attachment_image_alt', true);
echo $alt_text;Summary.
The get_post_meta function, which allows you to easily retrieve image alt attributes in WordPress, can be used as an important tool to improve the accessibility of your site. By providing accurate alt attributes, you can make your site easy to use for all users.