array(11) {
  [0]=>
  string(5) "11111"
  [1]=>
  string(5) "22222"
  [2]=>
  string(5) "33333"
  [3]=>
  string(5) "44444"
  [4]=>
  string(5) "55555"
  [5]=>
  string(5) "66666"
  [6]=>
  string(5) "77777"
  [7]=>
  string(5) "88888"
  [8]=>
  string(5) "99999"
  [9]=>
  string(5) "00000"
  [10]=>
  string(0) ""
}

<br>11111
<br>array(10) {
  [0]=>
  string(5) "22222"
  [1]=>
  string(5) "33333"
  [2]=>
  string(5) "44444"
  [3]=>
  string(5) "55555"
  [4]=>
  string(5) "66666"
  [5]=>
  string(5) "77777"
  [6]=>
  string(5) "88888"
  [7]=>
  string(5) "99999"
  [8]=>
  string(5) "00000"
  [9]=>
  string(0) ""
}
 Die Datei test.txt ist nicht schreibbar