protected static function LinkCollection::validKey in JSON:API 8.2
Ensures that a link key is valid.
Parameters
string $key: A key name.
Return value
bool TRUE if the key is valid, FALSE otherwise.
2 calls to LinkCollection::validKey()
- LinkCollection::withLink in src/JsonApiResource/ LinkCollection.php 
- Gets a new LinkCollection with the given link inserted.
- LinkCollection::__construct in src/JsonApiResource/ LinkCollection.php 
- LinkCollection constructor.
File
- src/JsonApiResource/ LinkCollection.php, line 195 
Class
- LinkCollection
- Contains a set of JSON:API Link objects.
Namespace
Drupal\jsonapi\JsonApiResourceCode
protected static function validKey($key) {
  return is_string($key) && !is_numeric($key) && strpos($key, ':') === FALSE;
}