如何使用php从json获取特定的电子邮件数据

$jsonData = '{"emails": [{"id": 1, "subject": "Hello", "sender": "sender@example.com"}, {"id": 2, "subject": "Hi", "sender": "sender2@example.com"}]}';
$data = json_decode($jsonData, true); // 将JSON解码为关联数组

$firstEmail = $data['emails'][0];
$subject = $firstEmail['subject'];
$sender = $firstEmail['sender'];

echo "Subject: " . $subject . "<br>";
echo "Sender: " . $sender . "<br>";

foreach ($data['emails'] as $email) {
    $subject = $email['subject'];
    $sender = $email['sender'];

    echo "Subject: " . $subject . "<br>";
    echo "Sender: " . $sender . "<br>";
}