YouTipPhp Coalescing Operator
# PHP NULL Coalescing Operator
[ PHP 7 New Features](#)
The NULL coalescing operator (??) added in PHP 7 is a shorthand for the ternary operation that performs an isset() check.
The NULL coalescing operator checks if a variable exists and its value is not NULL. If so, it returns its value; otherwise, it returns its second operand.
Previously, we wrote the ternary operator like this:
$site = isset($_GET['site']) ? $_GET['site'] : '';
Now we can write it directly like this:
$site = $_GET['site'] ?? '';
### Example
The output of the above program execution is:
* * PHP 7 New Features](#)