How to make "Select All Code" like phpbb3 in normal html

[Gon]

I want to use similar select all code in normal html page. could someone please help me. here is the example link. in page you will see there is "Select All" option to copy all links inside the code

https://www.phpbb.com/community/viewtopic.php?f=438&t=579376

 

[stefan-te]

Try this.

https://www.phpbb.com/community/viewtopic.php?p=5655675#p5655675

 

[Gon]

i am not looking for phpbb3. i want to use same feature on normal html page

 

[stefan-te]

Maybe something like this will help?

https://stackoverflow.com/questions/985272/selecting-text-in-an-element-akin-to-highlighting-with-your-mouse

https://stackoverflow.com/questions/1173194/select-all-div-text-with-single-mouse-click