Question

我正在尝试将$url = $_POST['url'];设置为类中的公共属性，但编辑器不会让我这样做。这是为什么？以下是我的代码：

class insertAd {
  public $uploadOk = 0;
  public $newVar1 = 0;

我希望：$url = $_POST['url'];

  function chkEmptyBoxes() {

    $url = $_POST['url'];

    $start_time = (int) $_POST['start_time'];
    $end_time = (int) $_POST['end_time'];
    $arr = array("Url" => "$url", "Start Time" => "$start_time", "End Time" => "$end_time");

    foreach ($arr as $key => $val) {
      if (empty($val)) {
        echo "<b>" . $key . "</b>" . " " . "require: ";
        $this->uploadOk = 0;
      } else {
        $this->uploadOk = 1;
        $this->newVar1 = 1;
      }
    }
  }
}

Answer 1

正如phplover所说，你需要设置变量。

在你的例子中：

class insertAd {
    public $uploadOk = 0;
    public $newVar1 = 0;
    public $url;

    // When you instantiate the class, set the $url to the specific value.
    public function __construct() {

        /* check, if the url's matches a specific pattern and it is a valid url
         * Better safe than sorry.
         */
        if(filter_var($_POST['url'], FILTER_VALIDATE_URL))
        {
            {
                $this->url = $_POST['url'];
            }
        }
    }

    function chkEmptyBoxes() {

        $start_time = (int) $_POST['start_time'];
        $end_time = (int) $_POST['end_time'];

        $arr = array("Url" => $this->url, "Start Time" => "$start_time", "EndTime" => "$end_time");

        foreach ($arr as $key => $val) {
            if (empty($val)) {
                echo "<b>" . $key . "</b>" . " " . "require: ";
                $this->uploadOk = 0;
            } 
            else {
                $this->uploadOk = 1;
                $this->newVar1 = 1;
            }
        }
    }
}

请记住，您要清理user_input！这是非常重要的事情。不要依赖用户的理智。

Answer 2

我知道你想从类函数中为全局变量$url赋值。试试这个：

...
function chkEmptyBoxes() {

    $GLOBALS['url'] = $_POST['url'];

    $start_time = (int) $_POST['start_time'];
...

如果它不起作用，请在调用此类函数之前将$ url设置为全局范围的初始值。

如何在PHP中的类中将$ _POST设置为公共属性或变量

2 个答案: