How does the php.ini file affect the functionality of PHP scripts?

The php.ini file is a configuration file for PHP settings. It can affect the functionality of PHP scripts by defining parameters such as memory limit, execution time, error reporting levels, and more. Changes made in the php.ini file can impact how PHP scripts behave and perform.

// Example of increasing the memory limit in the php.ini file
ini_set('memory_limit', '256M');