Web.config Url Rewrite Username (Php)

Question

How can I change the web rewrite url from (u/username) to (/username) like instagram.com/username

My web.config:

<rewrite>
<rules>
<rule name="Rule 1">
    <match url="^([a-zA-Z0-9_-]+)(|/)$" ignoreCase="false" />
    <action type="Rewrite" url="index.php?url={R:1}" appendQueryString="false" />
</rule>

<rule name="Rule 2" stopProcessing="true">
    <match url="u/([a-zA-Z0-9_-]+)(|/)$" ignoreCase="false" />
    <action type="Rewrite" url="/index.php?url=profile&amp;username={R:1}" appendQueryString="false" />
</rule>
</rewrite>

I tried some rules before but I can't figure it out.

Answer 1

If you want to rewrite mySite.com/u/username to mySite.com/username, you can refer to this rule:

<rewrite>
  <rules>
       <rule name="Remove u" stopProcessing="true">
            <match url="u/(.*)" />
            <action type="Rewrite" url=mySite.com/{R:1} appendQueryString="false" />
       </rule>
  </rules>
</rewrite>