Cannot increment property %s::$%s of type int past its maximal value¶

Description¶

When a property is typed as an int, it cannot have a value higher than PHP_INT_MIN: beyond it, it would be turned into a float. There is a symetric error with the min value of an integer.

Example¶

<?php

class X {
    public int $p;
}

$x = new X;

$x->p = PHP_INT_MAX;
++$test->foo;

?>

Literal Examples¶

Cannot increment property X::$p of type int past its maximal value

Solutions¶

Check the value before incrementing.
Drop the type, but see the property get turned into a float.