I created my php page by netbeans ide and xampp server and its running in local web browser as index.php.
now the problem is i want to access the index.php page by another computer and update mysql database, both are connected in lan.
Set an ip address to the PC running xampp server and access the application from other computer through this IP.
Yes you can access your server from other machine. In that case two issue is possible. 1. If you just need to access from local network 2. If you need to access from internet i.e. from anywhere on earth.
for 2 you would have to have real(public) IP address.
for 1: you can access only from local network. Local ip address is enough.
in both case you need to make a small change in httpd.conf file.
#your root directory address in full
<Directory "C:/Program Files/*/www">
Order allow, deny
Allow from all
</Directory>
After changing, you need to restart your apache server. then you can access from out side your own machine
create a virtual host of the project in the original pc, then on the other pc create a host entry by the ip address of the original pc and the virtual host name of the original pc. This virtual host name can be used in the other pc
Take for example there are 5 PC's connected to Lan. The IP address to all the computer will be as:
PC 1 have IP Address 192.168.1.2
PC 2 have IP Address 192.168.1.3
PC 3 have IP Address 192.168.1.4
PC 4 have IP Address 192.168.1.5
PC 5 have IP Address 192.168.1.6
now take for example you have installed Apache or IIS in PC 1 which have an IP address of 192.168.1.2, now all the other computer connected to netowrk will be able to access your web directory from the address 192.168.1.2. via a web browser. this will work regardless of what PHP application you are using. it is your Web server which is responsible for routing incoming request not your PHP application :)