To read the IP address of a remote computer or browser in PHP, you can use the $_SERVER['REMOTE_ADDR'] variable. This variable contains the IP address of the client that is accessing the PHP script.
Here is an example of how to use $_SERVER['REMOTE_ADDR'] to read the IP address of a remote computer or browser:
$ip_address = $_SERVER['REMOTE_ADDR']; echo "Your IP address is: $ip_address";
This will print the IP address of the client accessing the PHP script.
It's important to note that $_SERVER['REMOTE_ADDR'] may not always contain the actual IP address of the client. This is because it is possible for the client's IP address to be masked by a proxy server or a load balancer. In such cases, $_SERVER['REMOTE_ADDR'] will contain the IP address of the proxy server or load balancer, rather than the actual IP address of the client.
To get the actual IP address of the client, you may need to use other methods such as examining the $_SERVER['HTTP_X_FORWARDED_FOR'] variable, which may contain a comma-separated list of IP addresses representing the client and any intermediaries that have forwarded the request.
It's also important to note that the method for reading the IP address of a remote computer or browser may vary depending on your PHP version and server configuration. Consult the PHP documentation and your server's documentation for more information.