How does the user under which PHP scripts run affect the ability to use sudo commands?

When PHP scripts run, they inherit the permissions of the user they are executed under. If the PHP user does not have the necessary permissions to run sudo commands, the script will not be able to execute them. To solve this issue, you can add the PHP user to the sudoers file with the necessary permissions to run specific commands without a password prompt.

// Add the PHP user to the sudoers file
// Replace 'www-data' with the actual PHP user
// Add the specific command that the PHP user should be able to run without a password prompt
exec('sudo visudo -f /etc/sudoers.d/php_user', 'www-data ALL=(ALL) NOPASSWD: /path/to/your/command');