php数组echo out数组对象

Question

如何从这个数组中回显出“用户名”？

array(2) {
  ["data"]=>
  array(2) {
    [0]=>
    string(14) "username taken"
    [1]=>
    string(20) "email already in use"
  }
  ["error"]=>
  NULL
}

Answer 1

试试这个：

//define the array
$array = array("data"=>array("username taken","email already in use"),array("error"=>NULL));
//output full array
var_dump($array);
//output first element of data
echo "<br>".$array["data"][0];

Answer 2

echo $variableNameOfArray["data"]["0"];

应该做的伎俩。