wp-includes/formatting.php:5565Callback to add a target attribute to all links in passed content.
$mstringstringfunction _links_add_target( $m ) { global $_links_add_target; $tag = $m[1]; $link = preg_replace( '|( target=([\'"])(.*?)\2)|i', '', $m[2] ); return '<' . $tag . $link . ' target="' . esc_attr( $_links_add_target ) . '">';}Introduced in 2.7.0. Unchanged from 6.7.7 through 7.1.0.
Signature, return type and hooks compared across 5 parsed releases.
src/wp-includes/formatting.php, and regenerated for each WordPress release so it tracks the code rather than a snapshot of it.