Ajoutez ce code dans le fichier functions.php :

[pastacode lang= »php » manual= »function%20seomix_adm_media_attachment_alt(%24cols)%20%7B%0A%09%24cols%5B%22alt%22%5D%20%3D%20’ALT%20Text’%3B%0A%09return%20%24cols%3B%0A%7D%0Afunction%20seomix_adm_media_attachment_alt_content(%24column_name%2C%20%24id)%20%7B%0A%09if%20(%20%24column_name%20%3D%3D%3D%20’alt’%20)%20%7B%0A%09%09echo%20get_post_meta(%20%24id%2C%20’_wp_attachment_image_alt’%2C%20true)%3B%0A%09%7D%0A%7D%0Aadd_filter(‘manage_media_columns’%2C%20’seomix_adm_media_attachment_alt’%2C%201)%3B%0Aadd_action(‘manage_media_custom_column’%2C%20’seomix_adm_media_attachment_alt_content’%2C%201%2C%202)%3B » message= » » highlight= » » provider= »manual »/]