A simple-looking construct is needed for the use of sometimes-declared variables. After considering alternatives, I propose adding a function-like language construct for the purpose of coalescing undeclared variables.
The common challenge: Need to test the value of a variable whose existence is unknown.
Existing solutions:
$input = $_POST['input'] ?? 'none';
if ($input === 'yes') echo 'success';
$_POST['input'] ??= 'none';
if ($_POST['input'] === 'yes') echo 'success';Needed solution: What we don’t have is a Variable Handling Function that will concisely resolve any uninitialized variable.
Continue reading Functional Null Coalesce for PHP// Hypotheticalif (nullc($_POST['input']) === 'yes') echo 'success';