Please explain the difference between isset() and empty()?
1. isset(): It returns TRUE if the variable exists and has a value other than NULL. It means variables assigned a "", 0, "0", or FALSE are set.
2. empty(): It checks to see if a variable is empty. It interpreted as: "" (an empty string).
isset($var) && !empty($var)
will be equals to !empty($var)
BY Best Interview Question ON 25 Jan 2019