wp-admin/includes/image.php:1098Validates that file is suitable for displaying within a web page.
$pathstringboolOne hook fires while file_is_displayable_image() runs, in this order:
Filters whether the current image is displayable in the browser.
function file_is_displayable_image( $path ) { $displayable_image_types = array( IMAGETYPE_GIF, IMAGETYPE_JPEG, IMAGETYPE_PNG, IMAGETYPE_BMP, IMAGETYPE_ICO, IMAGETYPE_WEBP, IMAGETYPE_AVIF ); $info = wp_getimagesize( $path ); if ( empty( $info ) ) { $result = false; } elseif ( ! in_array( $info[2], $displayable_image_types, true ) ) { $result = false; } else { $result = true; } /** * Filters whether the current image is displayable in the browser. * * @since 2.5.0 * * @param bool $result Whether the image can be displayed. Default true. * @param string $path Path to the image. */ return apply_filters( 'file_is_displayable_image', $result, $path );}Introduced in 2.5.0. Unchanged from 6.7.7 through 7.1.0.
Signature, return type and hooks compared across 5 parsed releases.
src/wp-admin/includes/image.php, and regenerated for each WordPress release so it tracks the code rather than a snapshot of it.