Deprecated: Return type of YDataTable::getIterator() should either be compatible with IteratorAggregate::getIterator(): Traversable, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /home/bdavid/prod/georef/yamldoc/ydclasses/ydata.inc.php on line 428

Deprecated: Return type of YamlDataTable::getIterator() should either be compatible with IteratorAggregate::getIterator(): Traversable, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /home/bdavid/prod/georef/yamldoc/ydclasses/yamldata.inc.php on line 295
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var_dump /eurovoc /concepts/6722

object(Concept)#706 (1) {
  ["_c":protected]=>
  array(6) {
    ["inScheme"]=>
    array(2) {
      [0]=>
      int(100141)
      [1]=>
      int(100172)
    }
    ["topConceptOf"]=>
    array(2) {
      [0]=>
      int(100141)
      [1]=>
      int(100172)
    }
    ["prefLabel"]=>
    object(MLString)#707 (1) {
      ["_c":protected]=>
      array(2) {
        ["en"]=>
        array(1) {
          [0]=>
          string(5) "peace"
        }
        ["fr"]=>
        array(1) {
          [0]=>
          string(4) "paix"
        }
      }
    }
    ["narrower"]=>
    array(8) {
      [0]=>
      int(6117)
      [1]=>
      int(1743)
      [2]=>
      int(5773)
      [3]=>
      int(3112)
      [4]=>
      int(3496)
      [5]=>
      int(6024)
      [6]=>
      int(2485)
      [7]=>
      string(10) "c_959c23de"
    }
    ["related"]=>
    array(1) {
      [0]=>
      int(3056)
    }
    ["notation"]=>
    array(1) {
      [0]=>
      int(6722)
    }
  }
}