Are there standard formats for comments within code? [closed]

Answer 1

I prefer commenting this way for function

/**
 * Activates user if not already activated
 * @param POST string verificationCode
 * @param POST string key
 * @return true on success, false on failure
 * @author RN Kushwaha 
 * @since v1.0 
 */

public function activateUserAccount() {

//some code here

}

I use single line comment for code descriptions like

//check if verificationCode exists in any row of user table
code here