declare(strict_types=1);
declare(strict_types=1);
Enforcing strict typing in PHP helps catch type-related errors during development, resulting in more reliable and predictable code. By declaring strict_types=1
, PHP will perform strict type checking for function arguments and return types in the file where the declaration is placed.
Advantages: - Error Prevention: Catches type-related errors early in development. - Code Predictability: Ensures functions receive and return the expected types.
Example:
<?php
declare(strict_types=1);
function addNumbers(int $a, int $b): int {
return $a + $b;
}
echo addNumbers(5, 10); // Outputs: 15
?>