如何检查字符串是否包含“url或链接”并检索它 [英] How to check if string contain the "url or link" and retrieve it
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问题描述
我有页面的评论部分，用户可以在上传的内容上张贴评论，我想检查用户是否在他的评论中共享了任何链接。
I have comment section of page where user can post the comments on uploaded content, I want to check if user has shared any url links in his comment.
示例 -
var comment = "To search more on this question you can look to http://stackoverflow.com/ "
现在如何知道它是URL链接并检索该链接？如果我可以在 Jquery 和 Java Script 但是 PHP
Now How do I find out that it is URL link and retrieve that link?I would be great if I can find a way to do this in Jquery and Java Script but PHP is also acceptable.
在此先感谢。
Thanks in advance.
推荐答案
尝试使用此REGEX
Try to use this REGEX
((http:\/\/|https:\/\/)?(www.)?(([a-zA-Z0-9-]){2,}\.){1,4}([a-zA-Z]){2,6}(\/([a-zA-Z-_\/\.0-9#:?=&;,]*)?)?)
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