在字符串中查找 Youtube Link 的正则表达式

Question

我有一个这样的字符串：

Lorem Ipsum is simply dummy text of the printing and typesetting industry. Lorem Ipsum has been the industry's standard  dummy text ever since the 1500s, https://www.youtube.com/watch?v=7TL02DA5MZM when an unknown printer took a galley of type and scrambled it to make a type

这是我的：

preg_match("(?:http://)?(?:www.)?(?:youtube.com|youtu.be)/(?:watch\?)?([^\s]+?)", $content, $m);
    var_dump( $m );

并想从中提取 youtube link。视频id也可以。

非常感谢您的帮助！

Answer 1

这对你有用，

\S*\bwww\.youtube\.com\S*

\S* 匹配零个或多个非 space 字符。

代码是，

preg_match('~\S*\bwww\.youtube\.com\S*~', $str, $matches);

DEMO

我对你原来的正则表达式做了一些修正。

(?:https?://)?(?:www.)?(?:youtube.com|youtu.be)/(?:watch\?v=)?([^\s]+)

DEMO

$str = "Lorem Ipsum is simply dummy text of the printing and typesetting industry. Lorem Ipsum has been the industry's standard  dummy text ever since the 1500s, https://www.youtube.com/watch?v=7TL02DA5MZM when an unknown printer took a galley of type and scrambled it to make a type";
preg_match('~(?:https?://)?(?:www.)?(?:youtube.com|youtu.be)/(?:watch\?v=)?([^\s]+)~', $str, $match);
print_r($match);

输出：

Array
(
    [0] => https://www.youtube.com/watch?v=7TL02DA5MZM
    [1] => 7TL02DA5MZM
)

Answer 2

(?:https?:\/\/)?www\.youtube\.com\S+?v=\K\S+

您可以通过匹配 youtube url 获取视频 ID，然后使用 \K 丢弃。查看演示。

https://regex101.com/r/tX2bH4/21

$re = "/(?:https?:\/\/)?www\.youtube\.com\S+?v=\K\S+/i";
$str = "Lorem Ipsum is simply dummy text of the printing and typesetting industry. Lorem Ipsum has been the industry's standard dummy text ever since the 1500s, https://www.youtube.com/watch?v=7TL02DA5MZM when an unknown printer took a galley of type and scrambled it to make a type";

preg_match_all($re, $str, $matches);

Answer 3

我想出了以下正则表达式：

https?:\/\/(w{3}\.)?youtube\.com\/watch\?.+?(\s|$)

以下是我的使用方法：

$str = "Lorem Ipsum is simply dummy text of the printing and typesetting industry. Lorem Ipsum has been the industry's standard  dummy text ever since the 1500s, https://www.youtube.com/watch?v=7TL02DA5MZM when an unknown printer took a galley of type and scrambled it to make a type";

preg_match("/https?:\/\/(w{3}\.)?youtube\.com\/watch\?.+?(\s|$)/", $str, $matches);

$ytube = $matches[0];
$parse = parse_url($ytube);
parse_str($parse["query"], $query);

echo $ytube;
print_r($parse);
print_r($query);

这是项目的输出：

https://www.youtube.com/watch?v=7TL02DA5MZM
Array
(
    [scheme] => https
    [host] => www.youtube.com
    [path] => /watch
    [query] => v=7TL02DA5MZM 
)
Array
(
    [v] => 7TL02DA5MZM 
)

在字符串中查找 Youtube Link 的正则表达式

Regex to find Youtube Link in string

php

regex

preg-match