删除部分网址？ [关闭]

I would like to moderate forum where I'm promoted, I want remove part of links who actually redirect links.I know regular expression for it but I've never wrote any script so I need a little help.

It looks like this, I have

http://redirect.com/rd/ad/MYLINK.org/variable

and I would like to remove that fist part http://redirect.com/rd/ad/ to get

http://MYLINK.org/variable

Maybe PHP replacement would work for me but I still don't know how to make it working.

Variable part is \w+ and I have many links ending with different group of alphanumeric characters that makes them difficult to define in string search.

I believe it can be done with JavaScript replacement and also in html or in php, but everything I tried didn't work for me.

As I said I've tried to put this code in webpage php body

<script type="text/javascript">

var str = 'http://redirect.com/rd/ad/MYLINK.org/\w+';
var res = str.replace("redirect.com/rd/ad/", "");

</script>

but it didn't work. I had to define that variable part of string as \w+ because I have many links to replace and they are different in that last part I named as "variable".

Any help is appreciated.

</div>

If 'redirect.com/rd/ad/' is consistently the part that you want to remove, you can just use the replace function.

let url = "http://redirect.com/rd/ad/MYLINK.org/variable";
let fixedUrl = url.replace('redirect.com/rd/ad/','');
console.log(fixedUrl);

If the first part of the url can change, something like this would work

let url = "http://redirect.com/rd/ad/MYLINK.org/variable";
let firstIndex = url.indexOf('MYLINK.org');
let linkString = url.substring(firstIndex);
console.log('http://' + linkString);

What that does is finds where MYLINK.org starts, and cuts off everything before that point with "substring".