public AliasStorageInterface::pathHasMatchingAlias($initial_substring)
Check if any alias exists starting with $initial_substring.
string $initial_substring: Initial path substring to test against.
bool TRUE if any alias exists, FALSE otherwise.
public function pathHasMatchingAlias($initial_substring);
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https://api.drupal.org/api/drupal/core!lib!Drupal!Core!Path!AliasStorageInterface.php/function/AliasStorageInterface::pathHasMatchingAlias/8.1.x