PHP JSON解码到数组以获取特定的键值(所有字段同名)

$jsonString = '{"name": "John", "age": 30, "city": "New York"}';
$array = json_decode($jsonString, true);

// 获取特定键值
$name = $array['name'];
$age = $array['age'];
$city = $array['city'];

echo "Name: " . $name . "<br>";
echo "Age: " . $age . "<br>";
echo "City: " . $city . "<br>";

Name: John
Age: 30
City: New York

$jsonString = '[{"name": "John", "age": 30, "city": "New York"}, {"name": "Alice", "age": 25, "city": "London"}]';
$array = json_decode($jsonString, true);

// 遍历数组获取特定键值
foreach ($array as $item) {
    $name = $item['name'];
    $age = $item['age'];
    $city = $item['city'];

    echo "Name: " . $name . "<br>";
    echo "Age: " . $age . "<br>";
    echo "City: " . $city . "<br>";
}

Name: John
Age: 30
City: New York
Name: Alice
Age: 25
City: London