Search results for: "IP range restrictions"

What are the common mistakes to avoid when crafting regular expressions to match IP addresses in PHP?

One common mistake when crafting regular expressions to match IP addresses in PHP is not accounting for the range of valid IP address values. To avoid...

What are the potential pitfalls of implementing an IP-based voting restriction in PHP?

Potential pitfalls of implementing an IP-based voting restriction in PHP include the possibility of shared IP addresses, dynamic IP assignments, and V...

How can .htaccess be utilized to restrict access to a directory based on IP address in PHP?

To restrict access to a directory based on IP address in PHP, you can utilize the .htaccess file to set up IP address restrictions. This involves crea...

What additional considerations should be made when filtering IP addresses in PHP using preg_match?

When filtering IP addresses in PHP using preg_match, it's important to consider the format of the IP address and ensure that it matches the standard I...

Are there any potential pitfalls when using the FILTER_FLAG_NO_PRIV_RANGE flag in PHP to determine local IP addresses?

When using the FILTER_FLAG_NO_PRIV_RANGE flag in PHP to filter out private IP addresses, it's important to note that this flag may also exclude legiti...