Images (category)

file_is_displayable_image()	Checks if the file is an image (if it is suitable for display on the page). Conditional tag.
image_downsize()	Gets an array of image data for the specified size: URL, width and height of the attachment image.
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_attachment_is_image()	Determines whether the specified post is WordPress attachment image. A conditional tag.
wp_get_attachment_caption()	Retrieves the caption of specified attachment.
wp_get_attachment_image()	Gets the `<img>` tag of the image of the specified attachment (file attached to the post).
wp_get_attachment_image_sizes()	Gets the size values of the specified attachment image for the `sizes` attribute.
wp_get_attachment_image_src()	Gets an array of data for the specified image: URL, width, height of the attachment image.
wp_get_attachment_image_srcset()	Gets the value of the `srcset` attribute for the `<img>` tag. The value will contain the names of all sizes of the specified image in the format: `image.jpg 1x, image-sm.jpg 640w`.
wp_get_attachment_image_url()	Gets the URL of the attachment image by the provided image ID. You can also specify the size of the image for which you need to get the URL.
wp_get_image_mime()	Gets the real MIME type of an image file.