我如何创建一个函数来获取YouTube视频时间

TomJ Nowell发布了这段代码来帮助我检索YouTube视频时间。

功能

// function to parse the code from the URL
function parse_youtube_video_id_from_url( $video_url ) {
    $splited_data = explode( \'=\', $video_url );
    $video_unique_code = substr( $splited_data[1], 0, -strlen( strrchr( $splited_data[1], \'&\' ) ) );
    return $video_unique_code;
}

// use the youtube APIs to get a json string containing data about the video
function get_youtube_json_video_data( $video_code ) {
    $api_url = \'https://gdata.youtube.com/feeds/api/videos?v=2&alt=jsonc&q=\'.$video_code;
    $data = wp_remote_get( $api_url );
    return $data[\'body\'];
}

获取数据：

<?php $youtubecode = \'QiNIfGiNiOk\';
$video_data = get_youtube_json_video_data($youtubecode);
$video_data = json_decode( $video_data ); 
echo \'<pre>\'.print_r($video_data,true).\'</pre>\';
?>

上述代码检索的数据（例如）：

如何获取视频的持续时间（例如“1:23”）。

他告诉我：

创建一个函数，将该函数挂接到“save\\u post”和“publish\\u post”操作中，这些操作根据上述代码更新post meta/custom字段

如何创建该函数挂钩？我该如何组合：

自定义字段是我输入的键：

<?php $key="trailer"; echo get_post_meta($post->ID, $key, true); ?>

要检索视频数据，请指定YouTube URL代码，例如：

$youtubecode = \'QiNIfGiNiOk\';

--------------------------更新-有效的代码-------------------------

<?php 
$key="trailer";
$youtubecode = get_post_meta($post->ID, $key, true);
$video_data = get_youtube_json_video_data($youtubecode);
$video_data = json_decode( $video_data ); 
foreach ( $video_data->data->items as $data ){
                echo brsfl_secondsToTime($data->duration);
    }
?>

-------------------------------感谢Brasofilo----------------------------

add_action( \'save_post\', \'brsfl_save_postdata\' ); function brsfl_save_postdata( $post_id ) { // IMPORTANT! // Check for DOING_AUTOSAVE and wp_verify_nonce() $consult = brsfl_yt_api( $_POST[\'yt_id\'] ); if( $consult ) { $youtube[\'yt_time\'] = $consult[\'yt_time\']; $youtube[\'yt_likes\'] = $consult[\'yt_likes\']; $youtube[\'yt_dislikes\'] = $consult[\'yt_dislikes\']; $youtube[\'yt_average\'] = $consult[\'yt_average\']; $youtube[\'yt_raters\'] = $consult[\'yt_raters\']; $youtube[\'yt_viewcount\'] = $consult[\'yt_viewcount\']; $youtube[\'yt_title\'] = $consult[\'yt_title\']; $youtube[\'yt_thumb\'] = $consult[\'yt_thumb\']; update_post_meta( $post_id, \'youtube\', $youtube ); } } /** * Consult YouTube API * https://developers.google.com/youtube/2.0/developers_guide_protocol_video_entries */ function brsfl_yt_api( $video_id ) { // get Video Info $youtube = wp_remote_get( \'https://gdata.youtube.com/feeds/api/videos/\' . $video_id . \'?v=2&alt=json\', array( \'timeout\' => 120, \'httpversion\' => \'1.1\' ) ); // Full response: https://gist.github.com/e5a8cda8141b10711ad2 if ( $youtube[\'response\'][\'code\'] == \'200\' ) { $youtube_array = json_decode( $youtube[\'body\'], true ); $mediagroup = $youtube_array[\'entry\'][\'media$group\']; $yt_rating = $youtube_array[\'entry\'][\'yt$rating\']; $yt_stats = $youtube_array[\'entry\'][\'yt$statistics\']; $gd_rating = $youtube_array[\'entry\'][\'gd$rating\']; $return[\'yt_time\'] = brsfl_secondsToTime( $mediagroup[\'yt$duration\'][\'seconds\'] ); $return[\'yt_likes\'] = $yt_rating[\'numLikes\']; $return[\'yt_dislikes\'] = $yt_rating[\'numDislikes\']; $return[\'yt_average\'] = $gd_rating[\'average\']; $return[\'yt_raters\'] = $gd_rating[\'numRaters\']; $return[\'yt_viewcount\'] = $yt_stats[\'viewCount\']; $return[\'yt_title\'] = $youtube_array[\'entry\'][\'title\'][\'$t\']; $return[\'yt_thumb\'] = $mediagroup[\'media$thumbnail\'][1][\'url\']; return $return; } return false; } /** * Convert seconds to timecode * http://stackoverflow.com/q/8273804 */ function brsfl_secondsToTime($inputSeconds) { $secondsInAMinute = 60; $secondsInAnHour = 60 * $secondsInAMinute; $secondsInADay = 24 * $secondsInAnHour; // extract days $days = floor($inputSeconds / $secondsInADay); // extract hours $hourSeconds = $inputSeconds % $secondsInADay; $hours = floor($hourSeconds / $secondsInAnHour); // extract minutes $minuteSeconds = $hourSeconds % $secondsInAnHour; $minutes = floor($minuteSeconds / $secondsInAMinute); // extract the remaining seconds $remainingSeconds = $minuteSeconds % $secondsInAMinute; $seconds = ceil($remainingSeconds); // DAYS if( (int)$days == 0 ) $days = \'\'; elseif( (int)$days < 10 ) $days = \'0\' . (int)$days . \':\'; else $days = (int)$days . \':\'; // HOURS if( (int)$hours == 0 ) $hours = \'\'; elseif( (int)$hours < 10 ) $hours = \'0\' . (int)$hours . \':\'; else $hours = (int)$hours . \':\'; // MINUTES if( (int)$minutes == 0 ) $minutes = \'\'; elseif( (int)$minutes < 10 ) $minutes = \'0\' . (int)$minutes . \':\'; else $minutes = (int)$minutes . \':\'; // SECONDS if( (int)$seconds == 0 ) $seconds = \'00\'; elseif( (int)$seconds < 10 ) $seconds = \'0\' . (int)$seconds; return $days . $hours . $minutes . $seconds; }

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