wp-admin/includes/screen.php:205Register and configure an admin screen option
$optionstring$argsmixedoptionalarray()function add_screen_option( $option, $args = array() ) { $current_screen = get_current_screen(); if ( ! $current_screen ) { return; } $current_screen->add_option( $option, $args );}Introduced in 3.1.0. Unchanged from 6.7.7 through 7.1.0.
Signature, return type and hooks compared across 5 parsed releases.
src/wp-admin/includes/screen.php, and regenerated for each WordPress release so it tracks the code rather than a snapshot of it.