How can the use of short_open_tag in PHP scripts impact security and compatibility?

Using short_open_tag in PHP scripts can impact security because it allows for the use of the <? shorthand instead of <?php, which can lead to confusion and potential vulnerabilities. Additionally, it can affect compatibility with XML declarations and other languages that also use <? as an opening tag. To ensure better security and compatibility, it's recommended to disable short_open_tag in PHP scripts. To disable short_open_tag in PHP scripts, you can set the short_open_tag directive to Off in your php.ini file:

short_open_tag = Off