array(3) {
  [0]=>
  array(4) {
    ["nom"]=>
    string(3) "Bob"
    ["profession"]=>
    string(11) "super héro"
    ["age"]=>
    int(30)
    ["specialite"]=>
    string(15) "vision rayons X"
  }
  [1]=>
  array(4) {
    ["nom"]=>
    string(5) "Sally"
    ["profession"]=>
    string(11) "super héro"
    ["age"]=>
    int(24)
    ["specialite"]=>
    string(18) "force surnaturelle"
  }
  [2]=>
  array(4) {
    ["nom"]=>
    string(4) "Mary"
    ["profession"]=>
    string(15) "voyou espiègle"
    ["age"]=>
    int(63)
    ["specialite"]=>
    string(25) "technologie microscopique"
  }
}
super héro