What potential pitfalls should be considered when specifying the extension_dir in the php.ini file for PHP extensions?

Specifying the extension_dir in the php.ini file for PHP extensions can lead to potential pitfalls if the directory path is incorrect or inaccessible. To avoid issues, ensure that the specified directory exists and has the necessary permissions for PHP to access the extensions. Additionally, make sure that the extension_dir path is correctly formatted with forward slashes (/) and does not contain any typos.

; Example of specifying the extension_dir in php.ini
extension_dir = "C:/php/ext"