wp-admin/includes/class-custom-image-header.php:1323Creates an attachment 'object'.
$croppedstring$parent_attachment_idintarray final public function create_attachment_object( $cropped, $parent_attachment_id ) { _deprecated_function( __METHOD__, '6.5.0', 'wp_copy_parent_attachment_properties()' ); $parent = get_post( $parent_attachment_id ); $parent_url = wp_get_attachment_url( $parent->ID ); $url = str_replace( wp_basename( $parent_url ), wp_basename( $cropped ), $parent_url ); $size = wp_getimagesize( $cropped ); $image_type = ( $size ) ? $size['mime'] : 'image/jpeg'; $attachment = array( 'ID' => $parent_attachment_id, 'post_title' => wp_basename( $cropped ), 'post_mime_type' => $image_type, 'guid' => $url, 'context' => 'custom-header', 'post_parent' => $parent_attachment_id, ); return $attachment; }Introduced in 3.9.0. Unchanged from 6.7.7 through 7.1.0.
Signature, return type and hooks compared across 5 parsed releases.
src/wp-admin/includes/class-custom-image-header.php, and regenerated for each WordPress release so it tracks the code rather than a snapshot of it.