Youtube Feed with shortcode

<?php

function fetch_youtube_videos_shortcode($atts) {

$atts = shortcode_atts([

'channel_id' => '',

'playlist_id' => '',

'max_results' => 4,

'api_key' => '',

'type' => 'channel'

], $atts);

$api_key = $atts['api_key'];

$max = intval($atts['max_results']);

$cache_key_success = 'youtube_cache_success_' . md5(serialize($atts));

$cache_key_error = 'youtube_cache_error_' . md5(serialize($atts));

// 🚀 Try wp_cache first (fastest)

$cached_videos = wp_cache_get($cache_key_success, 'youtube_videos');

if (!$cached_videos) {

$cached_videos = get_transient($cache_key_success); // fallback to transient

if ($cached_videos) {

// Save back to wp_cache for faster future loads

wp_cache_set($cache_key_success, $cached_videos, 'youtube_videos', 6 * HOUR_IN_SECONDS);

}

if ($cached_videos) {

$body = $cached_videos;

} else {

// Check if error is cached (wp_cache first)

$cached_error = wp_cache_get($cache_key_error, 'youtube_videos');

if (!$cached_error) {

$cached_error = get_transient($cache_key_error);

if ($cached_error) {

wp_cache_set($cache_key_error, $cached_error, 'youtube_videos', HOUR_IN_SECONDS);

}

if ($cached_error) {

return esc_html($cached_error);

}

// Build API URL

if ($atts['type'] === 'playlist' && $atts['playlist_id']) {

$url = "https://www.googleapis.com/youtube/v3/playlistItems?part=snippet&playlistId={$atts['playlist_id']}&maxResults={$max}&key={$api_key}";

} elseif ($atts['type'] === 'channel' && $atts['channel_id']) {

$url = "https://www.googleapis.com/youtube/v3/search?key={$api_key}&channelId={$atts['channel_id']}&part=snippet,id&order=date&type=video&videoDuration=medium&maxResults={$max}";

} else {

return 'Invalid settings. Please check your shortcode attributes.';

}

$response = wp_remote_get($url);

if (is_wp_error($response)) {

$error_message = 'Unable to fetch videos. Please try again later.';

$error_cache_duration = apply_filters('youtube_videos_error_cache_time', HOUR_IN_SECONDS);

wp_cache_set($cache_key_error, $error_message, 'youtube_videos', $error_cache_duration);

set_transient($cache_key_error, $error_message, $error_cache_duration);

return $error_message;

}

$body = json_decode(wp_remote_retrieve_body($response));

if (isset($body->error)) {

$error_code = $body->error->code ?? '';

$error_message = $body->error->message ?? 'YouTube API error occurred.';

if (in_array($error_code, [403, 429])) {

$error_message = 'YouTube API quota limit reached. Please check back later.';

$quota_cache_duration = apply_filters('youtube_videos_quota_cache_time', DAY_IN_SECONDS);

wp_cache_set($cache_key_error, $error_message, 'youtube_videos', $quota_cache_duration);

set_transient($cache_key_error, $error_message, $quota_cache_duration);

} else {

$error_cache_duration = apply_filters('youtube_videos_error_cache_time', HOUR_IN_SECONDS);

wp_cache_set($cache_key_error, $error_message, 'youtube_videos', $error_cache_duration);

set_transient($cache_key_error, $error_message, $error_cache_duration);

}

return esc_html($error_message);

}

if (!empty($body->items)) {

$success_cache_duration = apply_filters('youtube_videos_success_cache_time', 6 * HOUR_IN_SECONDS);

wp_cache_set($cache_key_success, $body, 'youtube_videos', $success_cache_duration);

set_transient($cache_key_success, $body, $success_cache_duration);

} else {

$empty_cache_duration = apply_filters('youtube_videos_empty_cache_time', 30 * MINUTE_IN_SECONDS);

wp_cache_set($cache_key_error, 'No videos found.', 'youtube_videos', $empty_cache_duration);

set_transient($cache_key_error, 'No videos found.', $empty_cache_duration);

return 'No videos found.';

}

// 🔥 Generate HTML

$html = '<div class="youtube-video-widget" style="display:flex; flex-wrap:nowrap; gap:20px; overflow-x:auto; justify-content:space-between; font-family:\'Fira Sans Condensed\', sans-serif;">';

foreach ($body->items as $item) {

$snippet = $item->snippet;

$video_id = ($atts['type'] === 'playlist') ? $snippet->resourceId->videoId : ($item->id->videoId ?? '');

if (!$video_id) continue;

$title = esc_html($snippet->title);

$thumb = esc_url($snippet->thumbnails->medium->url);

$link = "https://www.youtube.com/watch?v={$video_id}";

$html .= "<div style='flex:1 0 24%; max-width:24%;'>

<p style='margin-top:8px;font-weight:600;font-size:19px;font-family:\"Fira Sans Condensed\", sans-serif;'>{$title}</p>

</a>

</div>";

}

$html .= '</div>';

return $html;

}

add_shortcode('youtube_videos', 'fetch_youtube_videos_shortcode');