YouTube profile ID regex

[Zenk]

Hi guys, could you help me sort out the YouTube IDs?
Unfortunately YouTube now offers custom IDs to people with 500 min. subscribers only, so I am forced to allow the long weird URLs on my forum as well.

At the moment I have this regex:

PHP Code:

((http|https):\/\/|)(www\.)?youtube\.com\/(channel\/|user\/)[a-zA-Z0-9]{1,}

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Which allows - http/https +/ www:

Code:

youtube.com/channel/CoolUserName youtube.com/user/CoolUserName youtube.com/channel/xHsadRaNdOmLeTtErS_3-x youtube.com/user/xHsadRaNdOmLeTtErS_3-x

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But it would be amazing if someone could help me with doing it so that you can just enter the ID as well, eg:
http/https and/or www:

PHP Code:

1 2 3 4 5 6 7

youtube.com/user/CoolUserName - value 2 youtube.com/channel/CoolUserName - value 2 youtube.com/CoolUserName - value 2* CoolUserName - value 1 youtube.com/user/xHsadRaNdOmLeTtErS_3-x - value 2 youtube.com/channel/xHsadRaNdOmLeTtErS_3-x - value 2 xHsadRaNdOmLeTtErS_3-x - value 1

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*youtube.com/CoolUserName - optional.

So the display format would be: {VALUE$1}{VALUE$2}

Unless there is a way to just store the ID (value 1) from the entered URL into the database?