wp-includes/class-wp-rewrite.php:1255Generates rewrite rules with permalink structure and walking directory only.
$permalink_structurestring$walk_dirsbooloptionalfalsearray public function generate_rewrite_rule( $permalink_structure, $walk_dirs = false ) { return $this->generate_rewrite_rules( $permalink_structure, EP_NONE, false, false, false, $walk_dirs ); }Introduced in 1.5.0. Unchanged from 6.7.7 through 7.1.0.
Signature, return type and hooks compared across 5 parsed releases.
src/wp-includes/class-wp-rewrite.php, and regenerated for each WordPress release so it tracks the code rather than a snapshot of it.