image (not thumbnails funcs) (tag)
| file_is_displayable_image() | Checks if the file is an image (if it is suitable for display on the page). Conditional tag. |
| next_image_link() | Displays a link to the next image attached to the post. |
| previous_image_link() | Outputs a link to the previous image attached to the post. Returns the HTML code of the link. |
| wp_get_additional_image_sizes() | Gets data of all additionally registered image sizes (thumbnails). |
| wp_get_attachment_url() | Gets the URL of the attachment by the provided attachment ID. Gets the link to the file. |
| wp_get_avif_info() | Extracts metadata of the specified AVIF image. Such as: width, height, color depth and number of channels. |
| wp_getimagesize() | Gets the image dimensions and other related information. |
| wp_read_image_metadata() | Gathers an array of useful image metadata from the exif and iptc file metadata. |