stevegray
4Penny.net
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8/17/2014 10:15:12 PM

Regex - match part of a URL querystring

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I struggle mightily with Regex, so every time that I achieve something I blog it.

Today, I wanted to look into the URL of a web site and remove part of the query string. Specifically, in these cases:

www.mysite.com?userid=123xy

www.mysite.com?userid=123xy&username=joe

www.mysite.com?tag=xyz&userid=1ww45

www.mysite.com?tag=xyz&userid=1g3x5&username=joe

I wanted to remove the 'userid=xxxxx' out of the url.

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