Question

我正在尝试创建一个twitter类并创建一个调用该类的方法和属性的对象。基本上我正在做的是为twitter用户名调用数据库并使用结果生成simplexml请求。（我省略了代码的那部分，因为它工作正常）。

一切似乎都运转正常，但我无法弄清楚为什么当我return $this->posts时只返回数组的第一项。当我删除return时，返回整个数组。我正在底部的对象中使用print_r来测试它。

   <?php 
    class twitter { 
        public $xml;
        public $count;
        public $query;
        public $result;
        public $city;
        public $subcategory;
        public $screen_name;
        public $posts;

        public function arrayTimeline(){
            $this->callDb($this->city, $this->subcategory);
            while($row = mysql_fetch_row($this->result)){ 
                foreach($row as $screen_name){ 
                    $this->getUserTimeline($screen_name, $count=2);
                }
                foreach($this->xml as $this->status){
                    return $this->posts[] = array("image"=>(string)$this->status->user->profile_image_url,"name"=>(string)$this->status->name, "username"=>(string)$this->status->user->name, "text"=>(string)$this->status->text, "time"=>strtotime($this->status->created_at)); 
                }
            }
        }


    $test = new twitter;
    $test->city="phoenix";
    $test->subcategory="computers";

    $test->arrayTimeline();

    print_r($test->posts);

    ?>

Answer 1

这是因为return会导致PHP离开您当前正在调用的方法。将返回移出循环，您将获得完整的数组。

    public function arrayTimeline(){
        $this->callDb($this->city, $this->subcategory);
        while($row = mysql_fetch_row($this->result)){ 
            foreach($row as $screen_name){ 
                $this->getUserTimeline($screen_name, $count=2);
            }
            foreach($this->xml as $this->status){
                $this->posts[] = array("image"=>(string)$this->status->user->profile_image_url,"name"=>(string)$this->status->name, "username"=>(string)$this->status->user->name, "text"=>(string)$this->status->text, "time"=>strtotime($this->status->created_at)); 
            }
        }

        return $this->posts;
    }

完全数组没有返回PHP

1 个答案: