Strict typing in PHP
I prefer writing and working with strictly typed code.
One of the major improvements in PHP has been the option to enable strict types.
For example, this code will usually not error and give the result:
function add(int $a, int $b): void
{
var_dump($a + $b);
}
add(1, '1');
However, I'd prefer if it failed as I'm passing the function an integer and a string, but specifying they should both be integers.
Fixing this is simple, by adding this line to the top of the file:
declare(strict_types=1);
I add this to every PHP file by default.
I want my code to be as strict and predictable as possible, and to error when I want it to and make any bugs more explicit and easier to find and fix.
- Oliver
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