Is it necessary to add arg_separator.output = "&" in the php.ini file for session.use_trans_sid configuration?

To solve the issue of ensuring that the session ID is properly passed in URLs when session.use_trans_sid is enabled in PHP, it is not necessary to add arg_separator.output = "&" in the php.ini file. Instead, you can manually set the arg_separator.output value in your PHP code to "&" to ensure that the session ID is correctly appended to URLs.

ini_set('arg_separator.output', '&');