PHP. Руководство по PHP. 2005

Short-circuited boolean evaluation Пред.

Приложение D. Migrating from PHP/FI 2 to PHP3

След.

Short-circuited boolean evaluation

In PHP3.0 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.

Пред.

Начало

След.

Error messages have changed

Уровень выше

Function TRUE /FALSE return values