wp-includes/SimplePie/src/Item.php:795Get the permalink for the item
string|null public function get_permalink() { $link = $this->get_link(); $enclosure = $this->get_enclosure(0); if ($link !== null) { return $link; } elseif ($enclosure !== null) { return $enclosure->get_link(); } return null; }Introduced in 0.8. Unchanged from 6.7.7 through 7.1.0.
Signature, return type and hooks compared across 5 parsed releases.
src/wp-includes/SimplePie/src/Item.php, and regenerated for each WordPress release so it tracks the code rather than a snapshot of it.