Description:
------------
---
From manual page: http://php.net/manual/zh/migration71.new-features.php
---


Test script:
---------------
$data = [
    ['id' => 1, 'name' => 'Tom'],
    ['id' => 2, 'name' => 'Fred'],
];

while (['id' => $id, 'name' => $name] = $data) {
    echo $id, $name;
    // logic here with $id and $name
}

Expected result:
----------------
$data = [
    ["id" => 1, "name" => 'Tom'],
    ["id" => 2, "name" => 'Fred'],
];

// list() style
list("id" => $id1, "name" => $name1) = $data[0];

// [] style
["id" => $id1, "name" => $name1] = $data[0];

// list() style
foreach ($data as list("id" => $id, "name" => $name)) {
    // logic here with $id and $name
}

// [] style
foreach ($data as ["id" => $id, "name" => $name]) {
    // logic here with $id and $name
}

Actual result:
--------------
$data = [
    ['id' => 1, 'name' => 'Tom'],
    ['id' => 2, 'name' => 'Fred'],
];

while (['id' => $id, 'name' => $name] = $data) {
    echo $id, $name;
    // logic here with $id and $name
}