Usted buscó: evaluate (Coreano - Checo)

constants may only evaluate to scalar values.
výchozí chování je case-sensitive; tj.

a very common type of expressions are comparison expressions. these expressions evaluate to either 0 or 1, meaning false or true (respectively). php supports (bigger than), = (bigger than or equal to), == (equal), != (not equal), (smaller than) and = (smaller than or equal to). these expressions are most commonly used inside conditional execution, such as if statements.
na začátku kapitoly bylo řečeno, že si popíšeme různé typy konstruktů, a jak bylo slíbeno, výrazy mohou být konstrukty.