How do I change search page url in PHP

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Javascript

PHP

HTML5

htaccess

I want to change the URL of a search page.
For Example, if someone searches on my website then the URL is
https://myweb.com/search.php?search=searched-keyword
I want to change it to something like
https://myweb.com/search/searched-keyword

How do I do this using PHP or .htaccess file

What I have tried:

I have used it in my .htaccess but it didn't work for me...

RewriteEngine On
    RewriteRule ^search.php?search=(.*)$ https://myweb.com/search$1 [L,R=301]