wp-includes/http.php:867Translates a PHP_URL_* constant to the named array keys PHP uses.
$constantintstring|falsefunction _wp_translate_php_url_constant_to_key( $constant ) { $translation = array( PHP_URL_SCHEME => 'scheme', PHP_URL_HOST => 'host', PHP_URL_PORT => 'port', PHP_URL_USER => 'user', PHP_URL_PASS => 'pass', PHP_URL_PATH => 'path', PHP_URL_QUERY => 'query', PHP_URL_FRAGMENT => 'fragment', ); if ( isset( $translation[ $constant ] ) ) { return $translation[ $constant ]; } else { return false; }}Introduced in 4.7.0. Unchanged from 6.7.7 through 7.1.0.
Signature, return type and hooks compared across 5 parsed releases.
src/wp-includes/http.php, and regenerated for each WordPress release so it tracks the code rather than a snapshot of it.