How can the PHP configuration setting allow_url_fopen impact the ability to save files on the server?

The PHP configuration setting allow_url_fopen can impact the ability to save files on the server because it determines whether PHP can open remote files using URLs. If this setting is disabled, PHP will not be able to save files from remote sources onto the server. To solve this issue, you can set allow_url_fopen to "On" in your php.ini file or use alternative methods to download and save files from remote sources.

// Enable allow_url_fopen in PHP
ini_set('allow_url_fopen', 1);