WAMP Server
If you use WAMP Server , it's quite simple.
- Click the WAMP icon in the Windows notifications area and click "Upload online":

-DiscovertheIPofyourcomputerinyournetwork.Todothis,openthecommandpromptandtype
ipconfig
.CopytheIPshortlyafter"IPv4 Address":

- EntertheIPofyourcomputerinyourmobilebrowserandvoila.Youmayneedtoconfirmtherequestonyourcomputer'sfirewall:
XAMPP
In XAMPP, edit the file C:\xampp\apache\conf\extra\httpd-xampp.conf
Transform this:
<LocationMatch "^/(?i:(?:xampp|security|licenses|phpmyadmin|webalizer|server-status|server-info))">
Require local
ErrorDocument 403 /error/XAMPP_FORBIDDEN.html.var
</LocationMatch>
In this:
<LocationMatch "^/(?i:(?:xampp|security|licenses|phpmyadmin|webalizer|server-status|server-info))">
#Require local
#ErrorDocument 403 /error/XAMPP_FORBIDDEN.html.var
</LocationMatch>
Then stay Apache with the XAMPP Control Panel. And test on the cell phone using the IP of the computer, as shown in the tutorial for WAMP.