有人可以告诉我如何从网址中获取youtube id,无论网址中有哪些其他GET变量。
以此视频为例:http://www.youtube.com/watch?v=C4kxS1ksqtw&feature=related
因此,在v=
和下一个&
答案 0 :(得分:287)
(您可以使用正则表达式来处理任何事情,但它们很容易出错,因此如果有专门针对您要完成的内容的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v=C4kxS1ksqtw&feature=relate
的查询,但我们只想要v=
之后的部分。为此,我们转向parse_str
,它基本上像字符串GET
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,会创建$v
和$feature
。我们只对$v
感兴趣。
为安全起见,您不希望仅存储命名空间中parse_url
的所有变量(请参阅mellowsoon的评论)。而是将变量存储为数组的元素,以便您可以控制存储的变量,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:
嘿嘿 - 谢谢查尔斯。这让我发笑,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.
- Jamie Zawinski
答案 1 :(得分:144)
preg_match("#(?<=v=)[a-zA-Z0-9-]+(?=&)|(?<=v\/)[^&\n]+|(?<=v=)[^&\n]+|(?<=youtu.be/)[^&\n]+#", $url, $matches);
这将占
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}
我略微改进了以支持: 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);
答案 2 :(得分:92)
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
匹配
不匹配:
答案 3 :(得分:32)
使用parse_str和parse_url可以很容易地完成此操作,并且在我看来更可靠。
我的功能支持以下网址:
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";
}
答案 4 :(得分:25)
解决方案对于任何链接类型!! :
<?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
答案 5 :(得分:12)
根据How to validate youtube video ids?
修正<?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));
}
答案 6 :(得分:9)
我们知道视频ID长度为11个字符,可以在v=
或vi=
或v/
或vi/
或youtu.be/
之前显示。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]);
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"
}
答案 7 :(得分:5)
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;
?>
答案 8 :(得分:4)
我有一些帖子内容,我必须加密才能获得Youtube ID。它碰巧采用Youtube提供的<iframe>
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>
我从@rob上面得到的以下模式。一旦找到匹配项,代码段会执行foreach
循环,为了获得额外的奖励,我将其链接到Youtube上的预览图像。它可能会匹配更多类型的Youtube嵌入类型和网址:
$pattern = '#(?<=(?:v|i)=)[a-zA-Z0-9-]+(?=&)|(?<=(?:v|i)\/)[^&\n]+|(?<=embed\/)[^"&\n]+|(?<=(?:v|i)=)[^&\n]+|(?<=youtu.be\/)[^&\n]+#';
preg_match_all($pattern, $post_content, $matches);
foreach ($matches as $match) {
$img = "<img src='http://img.youtube.com/vi/".str_replace('?rel=0','', $match[0])."/0.jpg' />";
break;
}
答案 9 :(得分:4)
(?<=\?v=)([a-zA-Z0-9_-]){11}
这也应该这样做。
答案 10 :(得分:4)
if (preg_match('![?&]{1}v=([^&]+)!', $url . '&', $m))
$video_id = $m[1];
答案 11 :(得分:2)
我知道线程的标题是指正则表达式的使用,但正如Zawinski引用的那样,我真的认为避免正则表达式在这里是最好的。我推荐这个功能:
function get_youtube_id($url)
{
if (strpos( $url,"v=") !== false)
{
return substr($url, strpos($url, "v=") + 2, 11);
}
elseif(strpos( $url,"embed/") !== false)
{
return substr($url, strpos($url, "embed/") + 6, 11);
}
}
我建议这样做,因为YouTube视频的ID始终相同,与网址的风格无关,例如:
http://www.youtube.com/watch?v=t_uW44Bsezg
http://www.youtube.com/watch?feature=endscreen&v=Id3xG4xnOfA&NR=1
可能是嵌入式和iframe
- ed的情况。
答案 12 :(得分:2)
$vid = preg_replace('/^.*(\?|\&)v\=/', '', $url); // Strip all meuk before and including '?v=' or '&v='.
$vid = preg_replace('/[^\w\-\_].*$/', '', $vid); // Strip trailing meuk.
答案 13 :(得分:1)
要提取捕获组中的id
,也可以选择以下表达式或该表达式的某些派生形式:
(?im)\b(?:https?:\/\/)?(?:w{3}\.)?youtu(?:be)?\.(?:com|be)\/(?:(?:\??v=?i?=?\/?)|watch\?vi?=|watch\?.*?&v=|embed\/|)([A-Z0-9_-]{11})\S*(?=\s|$)
$re = '/(?im)\b(?:https?:\/\/)?(?:w{3}\.)?youtu(?:be)?\.(?:com|be)\/(?:(?:\??v=?i?=?\/?)|watch\?vi?=|watch\?.*?&v=|embed\/|)([A-Z0-9_-]{11})\S*(?=\s|$)/';
$str = 'http://youtube.com/v/tFad5gHoBjY
https://youtube.com/vi/tFad5gHoBjY
http://www.youtube.com/?v=tFad5gHoBjY
http://www.youtube.com/?vi=tFad5gHoBjY
https://www.youtube.com/watch?v=tFad5gHoBjY
youtube.com/watch?vi=tFad5gHoBjY
youtu.be/tFad5gHoBjY
http://youtu.be/qokEYBNWA_0?t=30m26s
youtube.com/v/7HCZvhRAk-M
youtube.com/vi/7HCZvhRAk-M
youtube.com/?v=7HCZvhRAk-M
youtube.com/?vi=7HCZvhRAk-M
youtube.com/watch?v=7HCZvhRAk-M
youtube.com/watch?vi=7HCZvhRAk-M
youtu.be/7HCZvhRAk-M
youtube.com/embed/7HCZvhRAk-M
http://youtube.com/v/7HCZvhRAk-M
http://www.youtube.com/v/7HCZvhRAk-M
https://www.youtube.com/v/7HCZvhRAk-M
youtube.com/watch?v=7HCZvhRAk-M&wtv=wtv
http://www.youtube.com/watch?dev=inprogress&v=7HCZvhRAk-M&feature=related
youtube.com/watch?v=7HCZvhRAk-M
http://youtube.com/v/dQw4w9WgXcQ?feature=youtube_gdata_player
http://youtube.com/vi/dQw4w9WgXcQ?feature=youtube_gdata_player
http://youtube.com/?v=dQw4w9WgXcQ&feature=youtube_gdata_player
http://www.youtube.com/watch?v=dQw4w9WgXcQ&feature=youtube_gdata_player
http://youtube.com/?vi=dQw4w9WgXcQ&feature=youtube_gdata_player
http://youtube.com/watch?v=dQw4w9WgXcQ&feature=youtube_gdata_player
http://youtube.com/watch?vi=dQw4w9WgXcQ&feature=youtube_gdata_player
http://youtu.be/dQw4w9WgXcQ?feature=youtube_gdata_player';
preg_match_all($re, $str, $matches, PREG_SET_ORDER, 0);
var_dump($matches);
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"
}
}
如果您希望简化/修改/探索表达式,请在regex101.com的右上角进行说明。如果愿意,您还可以在this link中查看它如何与某些示例输入匹配。
jex.im可视化正则表达式:
答案 14 :(得分:1)
使用此代码:
$url = "http://www.youtube.com/watch?v=C4kxS1ksqtw&feature=related";
$parse = parse_url($url, PHP_URL_QUERY);
parse_str($parse, $output);
echo $output['watch'];
结果:C4kxS1ksqtw
答案 15 :(得分:0)
刚刚在http://snipplr.com/view/62238/get-youtube-video-id-very-robust/
在线发现了这个问题%let infile=/.../file.csv;
%let outfile=/.../new_file.csv;
data _null_ ;
infile "&infile" dsd dlm='|' lrecl=200000 truncover ;
file "&outfile" dsd dlm='|' lrecl=200000 ;
length var1-var5 $32767 ;
input var1-var5 ;
put (var1-var3 var5) (+0) ;
run;
答案 16 :(得分:0)
我使用了Shawn's answer的数据,但对它进行了概括并缩短了正则表达式。此功能的主要区别在于,它不会测试有效的Youtube URL,而只会查找视频ID。表示它仍将返回www.facebook.com?wtv=youtube.com/v/vidid
的视频ID。适用于所有测试用例,但有点松懈。因此,它将为https://www.twitter.com/watch?v=vidid
之类的东西输出误报。如果数据超级不一致,请使用此方法,否则请使用更特定的正则表达式或parse_url()
和parse_str()
。
preg_match("/([\?&\/]vi?|embed|\.be)[\/=]([\w-]+)/",$url,$matches);
print($matches[2]);
答案 17 :(得分:0)
我认为您正在尝试这样做。
functions.php
答案 18 :(得分:0)
,如果我想从充满其他字符的字符串中提取youtue网址怎么办?像这样:
Lorem ipsum dolor坐下,奉献己任,sius do eiusmod tempor incididunt ut Labore et dolore magna aliqua。尽量不要抽烟,不要打扰锻炼ullamco https://www.youtube.com/watch?v=cPW9Y94BJI0 ,这是普遍的劳动成果。 Duis aute irure dolor in reprehenderit in volttable velit esse cillum dolore eu fugiat nulla pariatur。不会出现意外的圣人,反而会在犯规的情况下动手动手。