In PHP 3.0 boolean evaluation is short-circuited. This means that in an expression like (1 || test_me()), the function test_me() would not be executed since nothing can change the result of the expression after the 1.
This is a minor compatibility issue, but may cause unexpected side-effects.
| Poprzedni | Spis treści | Następny |
| Error messages have changed | Początek rozdziału | Function TRUE/FALSE return values |