如何使用PHP实现微信小程序的任务查询功能？

$appId = "你的AppID";
$appSecret = "你的AppSecret";
$url = "https://api.weixin.qq.com/cgi-bin/token?grant_type=client_credential&appid=".$appId."&secret=".$appSecret;
$response = file_get_contents($url);
$result = JSON_decode($response, true);
$access_token = $result['access_token'];

$url = "Https://api.weixin.qq.com/wxa/business/getliveinfo?access_token=".$access_token;
$postData = array(
    "action" => "get_task_list",
    "begin_time" => "开始时间",
    "end_time" => "结束时间",
);
$options = array(
    'http' => array(
        'header'  => "Content-type: application/x-www-fORM-urlencoded
",
        'method'  => 'POST',
        'content' => http_build_query($postData),
    ),
);
$context  = stream_context_create($options);
$response = file_get_contents($url, false, $context);
$result = json_decode($response, true);
$tasks = $result['task_list'];

foreach($tasks as $task){
    $taskId = $task['task_id'];
    $taskTitle = $task['task_title'];
    // 在这里可以根据需要进行其他任务的相关信息的展示
    echo "<div>".$taskTitle."</div>";
}