$apiUrl = "https://bangumi.bilibili.com/web_api/timeline_global";
$jsonData = file_get_contents($apiUrl);
$timelineData = json_decode($jsonData, true);

$currentMonth = date('m');
$currentDay = date('d');

foreach ($timelineData['result'] as $dayIndex => $dayData) {
    $publicationDate = $dayData['date'];
    if ($publicationDate < "$currentMonth-$currentDay") {
        // 已过期的数据，不处理
        continue;
    } elseif ($publicationDate >= "$currentMonth-$currentDay") {
        // 处理未过期的数据
    }
}

<?php
$ch = curl_init();
curl_setopt($ch, CURLOPT_URL, "https://bangumi.bilibili.com/web_api/timeline_global");
curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
$get = curl_exec($ch);
curl_close($ch);

$data = json_decode($get, true);
$currentDate = date('n') . '-' . date('j');

foreach ($data['result'] as $entry) {
    $pub_time = $entry['date'];
    if ($pub_time < $currentDate) {
        continue;
    } elseif ($pub_time >= $currentDate) {
        foreach ($entry['seasons'] as $season) {
            echo '<div class="box">';
            echo '<a href="' . htmlspecialchars($season['url']) . '" target="_blank">';
            echo '<img src="' . htmlspecialchars($season['cover']) . '">';
            echo '</a>';
            echo '<a href="' . htmlspecialchars($season['url']) . '" target="_blank">' . htmlspecialchars($season['title']) . '</a>';
            echo '<p class="date">' . '于 ' . $entry['date'] . ' 更新' . '</p>';
            echo '<p class="pub_index">' . htmlspecialchars($season['pub_index']) . '</p>';
            echo '<br><hr>';
            echo '</div>';
        }
    }
}
?>