wp-includes/functions.php:6272Determines whether to force SSL used for the Administration Screens.
$forcestring|booloptionalnullboolfunction force_ssl_admin( $force = null ) { static $forced = false; if ( ! is_null( $force ) ) { $old_forced = $forced; $forced = $force; return $old_forced; } return $forced;}Introduced in 2.6.0. One change between 6.7.7 and 7.1.0.
Signature, return type and hooks compared across 5 parsed releases.
$force retyped from string|bool to string|bool|null.verified against sourcesrc/wp-includes/functions.php, and regenerated for each WordPress release so it tracks the code rather than a snapshot of it.