我有三个特质。
特质Param，GroupId和SessionId。GroupId和SessionId的特征包括Param。
第 GroupSession 类包括GroupId和SessionId的特征
<?php
trait Param
{
private $params = [];
public function setParams($params)
{
$this->params = $params;
}
public function getParam($param)
{
return isset($this->params[$param])
? $this->params[$param]
: null;
}
}
trait GroupId
{
use Param;
public function getGroupId()
{
return $this->getParam('group.id');
}
}
trait SessionId
{
use Param;
public function getSessionId()
{
return $this->getParam('session.id');
}
}
class GroupSession
{
use GroupId {
GroupId::setParams insteadOf SessionId;
GroupId::getParam insteadOf SessionId;
}
use SessionId;
}
$t = new GroupSession();
当我尝试运行此代码时，出现错误：
GroupId and SessionId define the same property ($params) in the composition of GroupSession. However, the definition differs and is considered incompatible.
请告诉我如何解决这个问题？
谢谢！
解决方法命名冲突
trait A
{
public function smallTalk()
{
echo "I am form trait A and method smallTalk";
echo "<br>";
}
public function bigTalk()
{
echo "I am form trait A and method bigTalk";
echo "<br>";
}
}
trait B
{
public function smallTalk()
{
echo "I am form trait B and method smallTalk";
echo "<br>";
}
public function bigTalk()
{
echo "I am form trait B and method bigTalk";
echo "<br>";
}
}
class AB
{
use A, B {
A::bigTalk insteadof B;
B::bigTalk as gazi;
B::smallTalk insteadof A;
A::smallTalk as anis;
}
}
$obj1 = new AB;
$obj1->bigTalk();
$obj1->gazi();
$obj1->smallTalk();
$obj1->anis();