从YouTube网址中提取分钟和秒的最佳方法?
http://www.youtube.com/watch?v=TjTbNWhsG28#t=1m40s&foo=1&bar=2
其中1m40s
是我需要的字符串,可以使用"#t="或"&t="。
也可能在最后(或在中间,但不太可能。 我会排除那个)
http://www.youtube.com/watch?v=TjTbNWhsG28?foo=1&bar=2#t=1m40s
"xmxs"中的"x"可以是一位或两位数字,并且只能传递其中一位
"#t=10m3s"或 "&t=09m12s"
它们都是可选的,如
"#t=10m"或 "&t=3s" 或 "#t=10m03"s
YouTube现在接受"#t="和"&t="作为这个参数,所以理想情况下我需要考虑两者。用户将把这些粘贴到博客的评论部分,输出会生成嵌入。我当前使用的脚本不会解析这些时间值。
一旦我知道分钟和秒,我会将总秒数传递给使用"start"参数生成嵌入代码的脚本。https://developers.google.com/youtube/player_parameters#start
我需要一个PHP解决方案。我假设substr()
和正则表达式的一个很好的组合。
使用此正则表达式((#)|('&))t=('d+m)?('d+s)?
我发现接受答案的代码非常混乱。它也不涵盖小时数。我也认为YouTube删除了#
网址。我在我的高级响应式视频嵌入器WordPress插件中编写了这个函数。我认为与公认的答案相比,它的编码非常干净,更容易理解。
我希望这会对某人有所帮助。
2019 年更新的通知是 (int) 部分去除了 h/m/s 字符。我愿意接受改进建议。
/**
* Calculates seconds based on youtube times
*
* @author Nicolas Jonas
* @license GPLv3
* @link http://nextgenthemes.com
*
* @param string $yttime The '1h25m13s' part of youtube URLs
*
* @return int Starttime in seconds
*/
function youtube_time_to_seconds( $yttime ) {
$matches['h'] = 0;
$matches['m'] = 0;
$matches['s'] = 0;
$pattern = '/' .
'(?<h>[0-9]+h)?' .
'(?<m>[0-9]+m)?' .
'(?<s>[0-9]+s)?/';
preg_match( $pattern, $yttime, $matches );
return ( (int) $matches['h'] * 60 * 60 ) +
( (int) $matches['m'] * 60 ) +
(int) $matches['s'];
}
引用的旧代码。不考虑案例 1h2s:
/**
* Calculates seconds based on youtube times
*
* @author Nicolas Jonas
* @license GPLv3
* @link http://nextgenthemes.com
*
* @param string $yttime The '1h25m13s' part of youtube URLs
*
* @return int Starttime in seconds
*/
function youtube_time_to_seconds( $yttime ) {
$format = false;
$hours = $minutes = $seconds = 0;
$pattern['hms'] = '/([0-9]+)h([0-9]+)m([0-9]+)s/'; // hours, minutes, seconds
$pattern['ms'] = '/([0-9]+)m([0-9]+)s/'; // minutes, seconds
$pattern['h'] = '/([0-9]+)h/';
$pattern['m'] = '/([0-9]+)m/';
$pattern['s'] = '/([0-9]+)s/';
foreach ( $pattern as $k => $v ) {
preg_match( $v, $yttime, $result );
if ( ! empty( $result ) ) {
$format = $k;
break;
}
}
switch ( $format ) {
case 'hms':
$hours = $result[1];
$minutes = $result[2];
$seconds = $result[3];
break;
case 'ms':
$minutes = $result[1];
$seconds = $result[2];
break;
case 'h':
$hours = $result[1];
break;
case 'm':
$minutes = $result[1];
break;
case 's':
$seconds = $result[1];
break;
default:
return false;
}
return ( $hours * 60 * 60 ) + ( $minutes * 60 ) + $seconds;
}
来源: Github
可以这样使用它:
它使用parse_url
和parse_str
解析 URL 和参数,而不是正则表达式整个 URL,这是更好、更可靠的方法。
$urls[] = 'http://youtu.be/vrXgLhkv21Y';
$urls[] = 'http://youtu.be/vrXgLhkv21Y?t=foobar';
$urls[] = 'http://youtu.be/vrXgLhkv21Y?foo=bar&t=4s';
$urls[] = 'http://youtu.be/vrXgLhkv21Y?t=1h19m14s';
$urls[] = 'http://youtu.be/vrXgLhkv21Y?t=19m14s';
$urls[] = 'http://youtu.be/vrXgLhkv21Y?t=2h';
$urls[] = 'http://youtu.be/vrXgLhkv21Y?t=5m';
$urls[] = 'http://youtu.be/vrXgLhkv21Y?t=50s';
#extract the part after the &t= in urls and run the function if exists
foreach( $urls as $url ) {
$parsed_url = parse_url( $url );
if ( empty( $parsed_url['query'] ) )
continue;
parse_str( $parsed_url['query'], $args );
if ( empty( $args['t'] ) )
continue;
echo youtube_time_to_seconds( $args['t'] ) . "'n";
}
输出:
4
4754
1154
7200
300
50
$url = "http://www.youtube.com/watch?v=TjTbNWhsG28#t=40m&foo=1&bar=2";
$regex_pattern1 = "([#|'&]+t+'=+[0-9]+[m]+[0-9]+[s])"; // minutes and seconds
$regex_pattern2 = "([#|'&]+t+'=+[0-9]+[m])"; // only minutes
$regex_pattern3 = "([#|'&]+t+'=+[0-9]+[s])"; // only seconds
$pattern_used = null;
if(!preg_match_all($regex_pattern1, $url, $time)) // not found "#t=XmXs"
{
if(!preg_match_all($regex_pattern2, $url, $time)) // not found "#t=Xm"
{
if(!preg_match_all($regex_pattern3, $url, $time)) // not found "#t=Xs"
die("Invalid URL");
else $pattern_used = 3;
}
else $pattern_used = 2;
}
else $pattern_used = 1;
$time = substr($time[0][0], 3, strlen($time[0][0])); // deleting "#t="
//echo $time; // prints "1m40s" or "40s" if only seconds are given
// --------------
$pattern_minutes = "([0-9]+[s])";
$pattern_seconds = "([0-9]+[m])";
if($pattern_used == 1) // we have both minutes and seconds defined
{
$minutes = preg_split($pattern_minutes, $time);
$seconds = preg_split($pattern_seconds, $time);
$array = array("minutes" => substr($minutes[0], 0, -1),
"seconds" => substr($seconds[1], 0, -1));
/* we have the following array now:
array (size=2)
'minutes' => string '1' (length=1)
'seconds' => string '40' (length=2)*/
}
else
{
if($pattern_used == 2) $time2 = preg_split($pattern_minutes, $time);
else $time2 = preg_split($pattern_seconds, $time);
$time2 = substr($time2[0], 0, -1);
echo $time2; // prints "40"
}