public AliasStorageInterface::aliasExists($alias, $langcode, $source = NULL)
Checks if alias already exists.
The default implementation performs case-insensitive matching on the 'source' and 'alias' strings.
Parameters
string $alias: Alias to check against.
string $langcode: Language of the alias.
string|null $source: (optional) Path that alias is to be assigned to.
Return value
bool TRUE if alias already exists and FALSE otherwise.
File
core/lib/Drupal/Core/Path/AliasStorageInterface.php, li