Session support is enabled in PHP by default also configure manually to be set disabled or enabled.
How to Enable:
Open your PHP configuration php.ini file and find the word “session.auto_start” and be ensure the config set to “On”
Also can be set in .htaccess file and add below line,
php_value session.auto_start 1 session.name = session
How to Disable:
You can easily turn it off session in PHP in few lines code,
Open a php.ini file and check the below line,
session.auto_start = "0"
Another option is open a .htaccess file and add below line
php_value session.auto_start 0 session.name = session
If you have specific user with different path in apache server also add below line,