Short-circuited boolean evaluationPHP ManualPrevAppendix A. Migrating from PHP/FI 2.0 to PHP 3.0NextShort-circuited boolean evaluation 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.PrevHomeNextError messages have changedUpFunction true/false return values