这段代码提示Fatal error: Uncaught Error: Cannot call constructor 怎么解决给出答案<?php class human{ public $name="";//姓名 public $height="";//身高 public $weight="";//体重 public function eat($food){ echo $this->name."在吃".$food."<br/>"; } } class anchors extends human{ public $name=""; public $stagename=""; public function __construct($name,$stagename){ parent::__construct(); $this->name=$name; $this->stagename=$stagename; } public function singing(){ echo"我是女主播，我会唱歌<br/>"; } public function eat($food){ echo $this->name."是女主播，我是边唱歌边吃($food)<br/>"; } } class nbaplayer extends human{ public $team="";//团队 public $playername="";//球员号码 public function __construct($name,$height,$weight,$team,$playername){ parent::__construct(); $this->name=$name; $this->height=$height; $this->weight=$weight; $this->team=$team; $this->playername=$playername; echo "构造函数执行了，当前对象是{$this->name}<br/>"; } public function run(){//跑步 echo "跑步中<br/>"; } public function jump(){//跳跃 echo "跳跃<br/>"; } public function dribble(){ echo "运球<br/>";//运球 } public function pass(){ echo "传球<br/>";//传球 } public function dunk(){ echo "扣篮<br/>";//扣篮 } public function eat($food){ echo "我是nba球员，我是站着吃饭，边吃($food)变看球赛<br/>"; } } $jordon=new nbaplayer("乔丹","1.98米","98公斤","公牛","23"); //输出乔丹对象 echo "名称=".$jordon->name."<br/>"; echo $jordon->eat("苹果"); $linda=new anchors("琳达","LD"); echo $linda->eat("苹果"); ?>

在类 `human` 中没有定义构造函数，所以在继承 `human` 的子类 `anchors` 和 `nbaplayer` 中调用父类构造函数时，应该传递对应的参数。修改代码如下：

<?php
class human{
    public $name="";//姓名
    public $height="";//身高
    public $weight="";//体重
    public function eat($food){
        echo $this->name."在吃".$food."<br/>";
    }
}

class anchors extends human{
    public $stagename="";//艺名
    public function __construct($name,$stagename){
        parent::__construct();
        $this->name=$name;
        $this->stagename=$stagename;
    }
    public function singing(){
        echo"我是女主播，我会唱歌<br/>";
    }
    public function eat($food){
        echo $this->name."是女主播，我是边唱歌边吃($food)<br/>";
    }
}

class nbaplayer extends human{
    public $team="";//团队
    public $playername="";//球员号码
    public function __construct($name,$height,$weight,$team,$playername){
        parent::__construct();
        $this->name=$name;
        $this->height=$height;
        $this->weight=$weight;
        $this->team=$team;
        $this->playername=$playername;
        echo "构造函数执行了，当前对象是{$this->name}<br/>";
    }
    public function run(){//跑步
        echo "跑步中<br/>";
    }
    public function jump(){//跳跃
        echo "跳跃<br/>";
    }
    public function dribble(){
        echo "运球<br/>";//运球
    }
    public function pass(){
        echo "传球<br/>";//传球
    }
    public function dunk(){
        echo "扣篮<br/>";//扣篮
    }
    public function eat($food){
        echo "我是nba球员，我是站着吃饭，边吃($food)变看球赛<br/>";
    }
}

$jordon=new nbaplayer("乔丹","1.98米","98公斤","公牛","23"); //输出乔丹对象
echo "名称=".$jordon->name."<br/>";
echo $jordon->eat("苹果");

$linda=new anchors("琳达","LD");
echo $linda->eat("苹果");
?>