> Write an explanation for the user who posted the following comment: "Wait. Isn't fastcgi essentially the same as mod_php? IPC with a long-running process rather than forking and capturing stdout? What's the newer fastcgi php method that isn't mod_php?"

is:

> FastCGI and mod_php are similar in that they both use a long-running process to handle PHP requests, rather than creating a new process for each request. However, they differ in how they are implemented and how they interact with the web server.

FastCGI is a protocol that allows a web server to communicate with external programs, such as PHP, to handle dynamic content. It is typically used with web servers such as Apache or Nginx. In the case of PHP, the web server uses FastCGI to send PHP requests to a PHP-FPM (FastCGI Process Manager) process, which then executes the PHP code and returns the result to the web server. This allows the web server to handle multiple PHP requests simultaneously, improving performance.

On the other hand, mod_php is an Apache module that embeds the PHP interpreter directly into the Apache web server. This means that Apache can handle PHP requests itself, without the need for external programs or FastCGI.