PHP Regex获取youtube视频ID？
有人可以告诉我如何从URL中获取youtube id,无论URL中有哪些其他GET变量.
以此视频为例:http://www.youtube.com/watch?v=C4kxS1ksqtw&feature=related
所以v=在下一个之间和之前&
Pet*_*tai 294
(您可以将regex用于任何事情,但它们很容易出错,所以如果有专门针对您要完成的PHP函数,请使用它们.)
parse_url接受一个字符串并将其切割成一个包含大量信息的数组.您可以使用此数组,也可以将所需的项目指定为第二个参数.在这种情况下,我们对查询感兴趣,即PHP_URL_QUERY.
现在我们有了查询,v=C4kxS1ksqtw&feature=relate但是我们只想要后面的部分v=.为此,我们转向parse_str基本上像GET字符串一样工作.它接受一个字符串并创建字符串中指定的变量.在这种情况下$v,$feature并创建.我们只对...感兴趣$v.
为了安全起见,您不希望仅存储parse_url命名空间中的所有变量(请参阅mellowsoon的注释).而是将变量存储为数组的元素,以便您可以控制要存储的变量,并且不会意外覆盖现有变量.
把所有东西放在一起,我们有:
<?php
$url = "http://www.youtube.com/watch?v=C4kxS1ksqtw&feature=relate";
parse_str( parse_url( $url, PHP_URL_QUERY ), $my_array_of_vars );
echo $my_array_of_vars['v'];
// Output: C4kxS1ksqtw
?>
编辑:
呵呵 - 谢谢查尔斯.这让我开怀大笑,我以前从未见过Zawinski的话:
Some people, when confronted with a problem, think ‘I know, I’ll use regular expressions.’ Now they have two problems.
- 杰米·扎温斯基
- 这不适用于youtube.com/v/VIDEOID,youtu.be/VIDEOID等,但... (51认同)
- <在此插入Zawinski引用>.虽然严肃地说,使用语言函数执行任务通常会比正常的正则表达式所需的箍跳更好. (11认同)
- 一个简单的例子说明为什么使用parse_str()的"魔术变量"并不是一个好主意 - > http://pastebin.com/AtaaPH4r (2认同)
- "有些人在面对问题时,会想'我知道,我会使用正则表达式'." 现在他们有两个问题." 这只是让我的一天......我的意思是......老兄,我真的和正则表达式斗争而不是我的问题...... ROFL (2认同)
Ant*_*ach 151
preg_match("#(?<=v=)[a-zA-Z0-9-]+(?=&)|(?<=v\/)[^&\n]+|(?<=v=)[^&\n]+|(?<=youtu.be/)[^&\n]+#", $url, $matches);
这将占到
youtube.com/v/{vidid}
youtube.com/vi/{vidid}
youtube.com/?v={vidid}
youtube.com/?vi={vidid}
youtube.com/watch?v={vidid}
youtube.com/watch?vi={vidid}
youtu.be/{vidid}
我稍微改进了一下以支持:http: //www.youtube.com/v/5xADESocujo？feature = autoshare&version = 3&autohide = 1&autoplay = 1
我现在使用的是:
preg_match("#(?<=v=)[a-zA-Z0-9-]+(?=&)|(?<=v\/)[^&\n]+(?=\?)|(?<=v=)[^&\n]+|(?<=youtu.be/)[^&\n]+#", $link, $matches);
- 这适用于所有网址,inc嵌入字符串`(？<=(？:v | i)=)[a-zA-Z0-9 - ] +(？=&)|(？<=(？:v | i) )\ /)[^&\n]的+ |(<=嵌入\ /)[^"&\n]的+ |？(<=(?: v |？I)=)[^&\n]的+ | (？<= youtu.be\/)[^&\n] +``http://rubular.com/r/M9PJYcQxRW (11认同)
- 我已更新它以处理这样的URL:http://www.youtube.com/embed/7zuAOomfiCc`#(?< = v =)[a-zA-Z0-9 - ] +(？=&)| (<= v\/？)[^&\n] +(= \？)|(？<=嵌入/)[^&\n]的+ |(？<= v =)[^&\n]的+ |(？<= youtu.be /)[^&\n] +#` (3认同)
- 怎么样/(youtu\.be\/|youtube\.com\/(watch,?(.*&)?v=|(embed|v|user)\/))([^\？&"' >] +)/ (3认同)
- 实际上@ bokor的代码用更多信息填充`$ matches`数组,包括对我的项目非常有用的视频ID (2认同)
- 除了Rob的正则表达式之外,还列出了列表.这在以下正则表达式中被删除:#(？<=(？:v | i)=)[a-zA-Z0-9 -_] + |(？<=(？:v | i)\ /) [？^&\n]的+ | [^"&\ N +] +(<=嵌入\ /？)|(<=(？:？v | I)=)[？^&\n] + |(？<= youtu.be\/)[^&？\n] +#现在支持:http://youtu.be/RRyG_mtYieI？list = PLnBXpb1YLPttKF7RZX64qI_AEyFjTvgtx https://www.youtube.com/watch?v= RRyG_mtYieI&index = 4&list = PLnBXpb1YLPttKF7RZX64qI _AEyFjTvgtx //www.youtube.com/embed/RRyG_mtYieI?list=PLnBXpb1YLPttKF7RZX64qI_AEyFjTvgtx http://www.youtube.com/v/RRyG_mtYieI (2认同)
Sha*_*awn 97
基于bokor对Anthony的回答的评论:
preg_match("/^(?:http(?:s)?:\/\/)?(?:www\.)?(?:m\.)?(?:youtu\.be\/|youtube\.com\/(?:(?:watch)?\?(?:.*&)?v(?:i)?=|(?:embed|v|vi|user)\/))([^\?&\"'>]+)/", $url, $matches);
$matches[1] 包含vidid
火柴:
- youtube.com/v/vidid
- youtube.com/vi/vidid
- youtube.com/?v=vidid
- youtube.com/?vi=vidid
- youtube.com/watch?v=vidid
- youtube.com/watch?vi=vidid
- youtu.be/vidid
- youtube.com/embed/vidid
- http://youtube.com/v/vidid
- http://www.youtube.com/v/vidid
- https://www.youtube.com/v/vidid
- youtube.com/watch?v=vidid&wtv=wtv
- http://www.youtube.com/watch?dev=inprogress&v=vidid&feature=related
- https://m.youtube.com/watch?v=vidid
不匹配:
- www.facebook.com?wtv=youtube.com/v/vidid
- 它添加带有空格的内容并抓取页面上 URL 后面的所有文本。这更好 /(?:http(?:s)?:\/\/)?(?:www\.)?(?:m\.)?(?:youtu\.be\/|youtube\. com\/(?:(?:watch)?\?(?:.*&)?v(?:i)?=|(?:embed|v|vi|user)\/))([a- zA-Z0-9\-_]*)/ (3认同)
Kus*_*Kus 34
这可以使用parse_str和parse_url轻松完成,在我看来更可靠.
我的函数支持以下URL:
- http://youtube.com/v/dQw4w9WgXcQ?feature=youtube_gdata_player
- http://youtube.com/vi/dQw4w9WgXcQ?feature=youtube_gdata_player
- http://youtube.com/?v=dQw4w9WgXcQ&feature=youtube_gdata_player
- http://www.youtube.com/watch?v=dQw4w9WgXcQ&feature=youtube_gdata_player
- http://youtube.com/?vi=dQw4w9WgXcQ&feature=youtube_gdata_player
- http://youtube.com/watch?v=dQw4w9WgXcQ&feature=youtube_gdata_player
- http://youtube.com/watch?vi=dQw4w9WgXcQ&feature=youtube_gdata_player
- http://youtu.be/dQw4w9WgXcQ?feature=youtube_gdata_player
还包括功能下面的测试.
/**
* Get Youtube video ID from URL
*
* @param string $url
* @return mixed Youtube video ID or FALSE if not found
*/
function getYoutubeIdFromUrl($url) {
$parts = parse_url($url);
if(isset($parts['query'])){
parse_str($parts['query'], $qs);
if(isset($qs['v'])){
return $qs['v'];
}else if(isset($qs['vi'])){
return $qs['vi'];
}
}
if(isset($parts['path'])){
$path = explode('/', trim($parts['path'], '/'));
return $path[count($path)-1];
}
return false;
}
// Test
$urls = array(
'http://youtube.com/v/dQw4w9WgXcQ?feature=youtube_gdata_player',
'http://youtube.com/vi/dQw4w9WgXcQ?feature=youtube_gdata_player',
'http://youtube.com/?v=dQw4w9WgXcQ&feature=youtube_gdata_player',
'http://www.youtube.com/watch?v=dQw4w9WgXcQ&feature=youtube_gdata_player',
'http://youtube.com/?vi=dQw4w9WgXcQ&feature=youtube_gdata_player',
'http://youtube.com/watch?v=dQw4w9WgXcQ&feature=youtube_gdata_player',
'http://youtube.com/watch?vi=dQw4w9WgXcQ&feature=youtube_gdata_player',
'http://youtu.be/dQw4w9WgXcQ?feature=youtube_gdata_player'
);
foreach($urls as $url){
echo $url . ' : ' . getYoutubeIdFromUrl($url) . "\n";
}
T.T*_*dua 24
SOLTUION对于任何链接类型!! :
<?php
function get_youtube_id_from_url($url) {
preg_match('/(http(s|):|)\/\/(www\.|)yout(.*?)\/(embed\/|watch.*?v=|)([a-z_A-Z0-9\-]{11})/i', $url, $results); return $results[6];
}
echo get_youtube_id_from_url('http://www.youtube.com/watch?var1=blabla#v=GvJehZx3eQ1$var2=bla');
// or http://youtu.be/GvJehZx3eQ1
// or http://www.youtube.com/embed/GvJehZx3eQ1
// or http://www.youtu.be/GvJehZx3eQ1/blabla?xyz
?>
输出: GvJehZx3eQ1
lle*_*ep3 12
修复基于如何验证YouTube视频ID？
<?php
$links = [
"youtube.com/v/tFad5gHoBjY",
"youtube.com/vi/tFad5gHoBjY",
"youtube.com/?v=tFad5gHoBjY",
"youtube.com/?vi=tFad5gHoBjY",
"youtube.com/watch?v=tFad5gHoBjY",
"youtube.com/watch?vi=tFad5gHoBjY",
"youtu.be/tFad5gHoBjY",
"http://youtu.be/qokEYBNWA_0?t=30m26s",
"youtube.com/v/vidid",
"youtube.com/vi/vidid",
"youtube.com/?v=vidid",
"youtube.com/?vi=vidid",
"youtube.com/watch?v=vidid",
"youtube.com/watch?vi=vidid",
"youtu.be/vidid",
"youtube.com/embed/vidid",
"http://youtube.com/v/vidid",
"http://www.youtube.com/v/vidid",
"https://www.youtube.com/v/vidid",
"youtube.com/watch?v=vidid&wtv=wtv",
"http://www.youtube.com/watch?dev=inprogress&v=vidid&feature=related",
"youtube.com/watch?v=7HCZvhRAk-M"
];
foreach($links as $link){
preg_match("#([\/|\?|&]vi?[\/|=]|youtu\.be\/|embed\/)([a-zA-Z0-9_-]+)#", $link, $matches);
var_dump(end($matches));
}
我们知道,视频ID是11个字符长度,前面可以v=或vi=或v/或vi/或youtu.be/.所以最简单的方法是:
<?php
$youtube = 'http://youtube.com/v/dQw4w9WgXcQ?feature=youtube_gdata_player
http://youtube.com/vi/dQw4w9WgXcQ?feature=youtube_gdata_player
http://youtube.com/?v=dQw4w9WgXcQ&feature=youtube_gdata_player
http://www.youtube.com/watch?v=dQw4w9WgXcQ&feature=youtube_gdata_player
http://youtube.com/?vi=dQw4w9WgXcQ&feature=youtube_gdata_player
http://youtube.com/watch?v=dQw4w9WgXcQ&feature=youtube_gdata_player
http://youtube.com/watch?vi=dQw4w9WgXcQ&feature=youtube_gdata_player
http://youtu.be/dQw4w9WgXcQ?feature=youtube_gdata_player';
preg_match_all("#(?<=v=|v\/|vi=|vi\/|youtu.be\/)[a-zA-Z0-9_-]{11}#", $youtube, $matches);
var_dump($matches[0]);
并输出:
array(8) {
[0]=>
string(11) "dQw4w9WgXcQ"
[1]=>
string(11) "dQw4w9WgXcQ"
[2]=>
string(11) "dQw4w9WgXcQ"
[3]=>
string(11) "dQw4w9WgXcQ"
[4]=>
string(11) "dQw4w9WgXcQ"
[5]=>
string(11) "dQw4w9WgXcQ"
[6]=>
string(11) "dQw4w9WgXcQ"
[7]=>
string(11) "dQw4w9WgXcQ"
}
以下内容适用于所有YouTube链接
<?php
// Here is a sample of the URLs this regex matches: (there can be more content after the given URL that will be ignored)
// http://youtu.be/dQw4w9WgXcQ
// http://www.youtube.com/embed/dQw4w9WgXcQ
// http://www.youtube.com/watch?v=dQw4w9WgXcQ
// http://www.youtube.com/?v=dQw4w9WgXcQ
// http://www.youtube.com/v/dQw4w9WgXcQ
// http://www.youtube.com/e/dQw4w9WgXcQ
// http://www.youtube.com/user/username#p/u/11/dQw4w9WgXcQ
// http://www.youtube.com/sandalsResorts#p/c/54B8C800269D7C1B/0/dQw4w9WgXcQ
// http://www.youtube.com/watch?feature=player_embedded&v=dQw4w9WgXcQ
// http://www.youtube.com/?feature=player_embedded&v=dQw4w9WgXcQ
// It also works on the youtube-nocookie.com URL with the same above options.
// It will also pull the ID from the URL in an embed code (both iframe and object tags)
$url = "https://www.youtube.com/watch?v=v2_MLFVdlQM";
preg_match('%(?:youtube(?:-nocookie)?\.com/(?:[^/]+/.+/|(?:v|e(?:mbed)?)/|.*[?&]v=)|youtu\.be/)([^"&?/ ]{11})%i', $url, $match);
$youtube_id = $match[1];
echo $youtube_id;
?>
为了id在捕获组中提取，以下表达式或它的一些派生也可能是一个选项：
(?im)\b(?:https?:\/\/)?(?:w{3}\.)?youtu(?:be)?\.(?:com|be)\/(?:(?:\??v=?i?=?\/?)|watch\?vi?=|watch\?.*?&v=|embed\/|)([A-Z0-9_-]{11})\S*(?=\s|$)
演示
测试
$re = '/(?im)\b(?:https?:\/\/)?(?:w{3}\.)?youtu(?:be)?\.(?:com|be)\/(?:(?:\??v=?i?=?\/?)|watch\?vi?=|watch\?.*?&v=|embed\/|)([A-Z0-9_-]{11})\S*(?=\s|$)/';
$str = 'http://youtube.com/v/tFad5gHoBjY
https://youtube.com/vi/tFad5gHoBjY
http://www.youtube.com/?v=tFad5gHoBjY
http://www.youtube.com/?vi=tFad5gHoBjY
https://www.youtube.com/watch?v=tFad5gHoBjY
youtube.com/watch?vi=tFad5gHoBjY
youtu.be/tFad5gHoBjY
http://youtu.be/qokEYBNWA_0?t=30m26s
youtube.com/v/7HCZvhRAk-M
youtube.com/vi/7HCZvhRAk-M
youtube.com/?v=7HCZvhRAk-M
youtube.com/?vi=7HCZvhRAk-M
youtube.com/watch?v=7HCZvhRAk-M
youtube.com/watch?vi=7HCZvhRAk-M
youtu.be/7HCZvhRAk-M
youtube.com/embed/7HCZvhRAk-M
http://youtube.com/v/7HCZvhRAk-M
http://www.youtube.com/v/7HCZvhRAk-M
https://www.youtube.com/v/7HCZvhRAk-M
youtube.com/watch?v=7HCZvhRAk-M&wtv=wtv
http://www.youtube.com/watch?dev=inprogress&v=7HCZvhRAk-M&feature=related
youtube.com/watch?v=7HCZvhRAk-M
http://youtube.com/v/dQw4w9WgXcQ?feature=youtube_gdata_player
http://youtube.com/vi/dQw4w9WgXcQ?feature=youtube_gdata_player
http://youtube.com/?v=dQw4w9WgXcQ&feature=youtube_gdata_player
http://www.youtube.com/watch?v=dQw4w9WgXcQ&feature=youtube_gdata_player
http://youtube.com/?vi=dQw4w9WgXcQ&feature=youtube_gdata_player
http://youtube.com/watch?v=dQw4w9WgXcQ&feature=youtube_gdata_player
http://youtube.com/watch?vi=dQw4w9WgXcQ&feature=youtube_gdata_player
http://youtu.be/dQw4w9WgXcQ?feature=youtube_gdata_player';
preg_match_all($re, $str, $matches, PREG_SET_ORDER, 0);
var_dump($matches);
输出
array(30) {
[0]=>
array(2) {
[0]=>
string(32) "http://youtube.com/v/tFad5gHoBjY"
[1]=>
string(11) "tFad5gHoBjY"
}
[1]=>
array(2) {
[0]=>
string(34) "https://youtube.com/vi/tFad5gHoBjY"
[1]=>
string(11) "tFad5gHoBjY"
}
[2]=>
array(2) {
[0]=>
string(37) "http://www.youtube.com/?v=tFad5gHoBjY"
[1]=>
string(11) "tFad5gHoBjY"
}
[3]=>
array(2) {
[0]=>
string(38) "http://www.youtube.com/?vi=tFad5gHoBjY"
[1]=>
string(11) "tFad5gHoBjY"
}
[4]=>
array(2) {
[0]=>
string(43) "https://www.youtube.com/watch?v=tFad5gHoBjY"
[1]=>
string(11) "tFad5gHoBjY"
}
[5]=>
array(2) {
[0]=>
string(32) "youtube.com/watch?vi=tFad5gHoBjY"
[1]=>
string(11) "tFad5gHoBjY"
}
[6]=>
array(2) {
[0]=>
string(20) "youtu.be/tFad5gHoBjY"
[1]=>
string(11) "tFad5gHoBjY"
}
[7]=>
array(2) {
[0]=>
string(27) "http://youtu.be/qokEYBNWA_0"
[1]=>
string(11) "qokEYBNWA_0"
}
[8]=>
array(2) {
[0]=>
string(25) "youtube.com/v/7HCZvhRAk-M"
[1]=>
string(11) "7HCZvhRAk-M"
}
[9]=>
array(2) {
[0]=>
string(26) "youtube.com/vi/7HCZvhRAk-M"
[1]=>
string(11) "7HCZvhRAk-M"
}
[10]=>
array(2) {
[0]=>
string(26) "youtube.com/?v=7HCZvhRAk-M"
[1]=>
string(11) "7HCZvhRAk-M"
}
[11]=>
array(2) {
[0]=>
string(27) "youtube.com/?vi=7HCZvhRAk-M"
[1]=>
string(11) "7HCZvhRAk-M"
}
[12]=>
array(2) {
[0]=>
string(31) "youtube.com/watch?v=7HCZvhRAk-M"
[1]=>
string(11) "7HCZvhRAk-M"
}
[13]=>
array(2) {
[0]=>
string(32) "youtube.com/watch?vi=7HCZvhRAk-M"
[1]=>
string(11) "7HCZvhRAk-M"
}
[14]=>
array(2) {
[0]=>
string(20) "youtu.be/7HCZvhRAk-M"
[1]=>
string(11) "7HCZvhRAk-M"
}
[15]=>
array(2) {
[0]=>
string(29) "youtube.com/embed/7HCZvhRAk-M"
[1]=>
string(11) "7HCZvhRAk-M"
}
[16]=>
array(2) {
[0]=>
string(32) "http://youtube.com/v/7HCZvhRAk-M"
[1]=>
string(11) "7HCZvhRAk-M"
}
[17]=>
array(2) {
[0]=>
string(36) "http://www.youtube.com/v/7HCZvhRAk-M"
[1]=>
string(11) "7HCZvhRAk-M"
}
[18]=>
array(2) {
[0]=>
string(37) "https://www.youtube.com/v/7HCZvhRAk-M"
[1]=>
string(11) "7HCZvhRAk-M"
}
[19]=>
array(2) {
[0]=>
string(31) "youtube.com/watch?v=7HCZvhRAk-M"
[1]=>
string(11) "7HCZvhRAk-M"
}
[20]=>
array(2) {
[0]=>
string(57) "http://www.youtube.com/watch?dev=inprogress&v=7HCZvhRAk-M"
[1]=>
string(11) "7HCZvhRAk-M"
}
[21]=>
array(2) {
[0]=>
string(31) "youtube.com/watch?v=7HCZvhRAk-M"
[1]=>
string(11) "7HCZvhRAk-M"
}
[22]=>
array(2) {
[0]=>
string(32) "http://youtube.com/v/dQw4w9WgXcQ"
[1]=>
string(11) "dQw4w9WgXcQ"
}
[23]=>
array(2) {
[0]=>
string(33) "http://youtube.com/vi/dQw4w9WgXcQ"
[1]=>
string(11) "dQw4w9WgXcQ"
}
[24]=>
array(2) {
[0]=>
string(33) "http://youtube.com/?v=dQw4w9WgXcQ"
[1]=>
string(11) "dQw4w9WgXcQ"
}
[25]=>
array(2) {
[0]=>
string(42) "http://www.youtube.com/watch?v=dQw4w9WgXcQ"
[1]=>
string(11) "dQw4w9WgXcQ"
}
[26]=>
array(2) {
[0]=>
string(34) "http://youtube.com/?vi=dQw4w9WgXcQ"
[1]=>
string(11) "dQw4w9WgXcQ"
}
[27]=>
array(2) {
[0]=>
string(38) "http://youtube.com/watch?v=dQw4w9WgXcQ"
[1]=>
string(11) "dQw4w9WgXcQ"
}
[28]=>
array(2) {
[0]=>
string(39) "http://youtube.com/watch?vi=dQw4w9WgXcQ"
[1]=>
string(11) "dQw4w9WgXcQ"
}
[29]=>
array(2) {
[0]=>
string(27) "http://youtu.be/dQw4w9WgXcQ"
[1]=>
string(11) "dQw4w9WgXcQ"
}
}
如果你想简化/修改/探索表达式，它已经在regex101.com 的右上角面板中进行了解释。如果您愿意，您还可以在此链接中观看它如何与某些示例输入匹配。
正则表达式电路
jex.im可视化正则表达式：
if (preg_match('![?&]{1}v=([^&]+)!', $url . '&', $m))
$video_id = $m[1];
我必须对一些帖子内容进行加密才能获取 Youtube ID。它恰好采用<iframe>Youtube 提供的嵌入代码的形式。
<iframe src="http://www.youtube.com/embed/Zpk8pMz_Kgw?rel=0" frameborder="0" width="620" height="360"></iframe>\n以下模式是我从上面的@rob 那里得到的。foreach一旦找到匹配项，该片段就会循环，为了获得额外的好处，我将其链接到 Youtube 上找到的预览图像。它可能会匹配更多类型的 Youtube 嵌入类型和网址：
$pattern = \'#(?<=(?:v|i)=)[a-zA-Z0-9-]+(?=&)|(?<=(?:v|i)\\/)[^&\\n]+|(?<=embed\\/)[^"&\\n]+|(?<=\xe2\x80\x8c\xe2\x80\x8b(?:v|i)=)[^&\\n]+|(?<=youtu.be\\/)[^&\\n]+#\';\n\npreg_match_all($pattern, $post_content, $matches);\n\nforeach ($matches as $match) {\n $img = "<img src=\'http://img.youtube.com/vi/".str_replace(\'?rel=0\',\'\', $match[0])."/0.jpg\' />";\n break;\n}\nRob 的个人资料：/sf/users/10473081/
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