Search results for: "DNS checks"

Is it possible to block all subdomains without access to DNS entries in PHP, and what are the alternatives for achieving this?

To block all subdomains without access to DNS entries in PHP, one approach is to check the `$_SERVER['HTTP_HOST']` variable to see if it contains a su...

Are there any common pitfalls to avoid when performing variable checks in PHP?

One common pitfall to avoid when performing variable checks in PHP is not using strict comparison operators, such as "===" and "!==" to check for both...

How can error_reporting and syntax checks help in debugging PHP scripts?

Error_reporting and syntax checks can help in debugging PHP scripts by providing detailed error messages that point out exactly where an issue occurs...

What are the best practices for setting up multiple domains to point to the same content on a PHP server using DNS records and aliases?

When setting up multiple domains to point to the same content on a PHP server, you can use DNS records to point all the domains to the same server IP...

What are the potential pitfalls of using fsockopen in PHP for server status checks?

Potential pitfalls of using fsockopen in PHP for server status checks include potential timeouts, connection errors, and performance issues. To mitiga...