# Null Coalesce Operator
null coalescing operator (
??) has been added as syntactic sugar for the common case of needing to use a ternary in conjunction with
It returns its first operand if it exists and is not
NULL; otherwise it returns its second operand.
# General usage
// Fetches the value of $_GET['id'] and returns 0 if it does not exist. $id = $_GET['id'] ?? 0; // This is equivalent to: $id = isset($_GET['id']) ? $_GET['id'] : 0; // Coalescing can be chained: this will return the first defined value out of // $_GET['id'], $_POST['id'], and 0. $id = $_GET['id'] ?? $_POST['id'] ?? 0;