php学习笔记--trait的使用（为实现多继承产生）

<?phptrait Tool{functiongetName(){echo"tool name";
    }
}classHammerTool{useTool}

$tempTool = newHammerTool();$tempTool->getName();//输出:tool name

<?phptrait A{functionsmallTalk(){echo"A smallTalk";
    }functionbigTalk(){echo"A bigTalk";
    }
}trait B{functionsmallTalk(){echo"B smallTalk";
    }functionbigTalk(){echo"B bigTalk";
    }functionmiddleTalk(){echo"B middleTalk";
    }
}classTalker {useA, B {B::smallTalkinsteadofA;//用B的smallTalk替换A的方法。A::bigTalk insteadof B;
        B::middleTalk asprivate myPrivateHello;//重命名为B}
}