To configure the port for a Spring Boot application, you can use the server.port property in the application's configuration file. The configuration file can be a application.properties file in the classpath, or a application.yml file in the classpath.
Here is a short tutorial that will assist you in configuring XAMPP to send email from localhost using PHP.
The given snippet explores how to read request readers in PHP. Read it and learn the most helpful methods of reading any request headers in PHP.