Search results for: "DNS entry"

What potential reasons could lead to the function checkdnsr returning an entry for a non-existent domain in PHP?

The function checkdnsr may return an entry for a non-existent domain in PHP if the DNS cache is not updated or if there is a delay in propagating the...

Are there any best practices for handling dynamic DNS updates in PHP applications?

When handling dynamic DNS updates in PHP applications, one best practice is to use a library like `php-dyndns` that provides a simple and secure way t...

What potential issues or limitations are there when using PHP to query DNS records?

One potential issue when using PHP to query DNS records is that the DNS functions in PHP are limited and may not provide all the information needed. T...

How can server-side DNS cache affect the retrieval of data using cURL in PHP?

When a server-side DNS cache is enabled, it can affect the retrieval of data using cURL in PHP by potentially returning outdated DNS records. To solve...

What are the best practices for determining domain availability in PHP, considering DNS resolution?

When determining domain availability in PHP, it is important to consider DNS resolution to ensure accurate results. One common approach is to use the...