php - 在类中设置变量

Question

我想做这样的事情:

<?php
    $editor = new editor('reply.php?topic=100', 'simple');
    echo $editor;
?>

但是我不熟悉 OOP/类，但我想在类中做这样的事情:

<?php
class editor($url, $type)
{
    if($type == 'simple'){
        ?>
            <form action="<?php echo $url; ?>">
                ...
            </form>
        <?php
    }
    else
    {
        ...
    }
}
?>

当然，这是不对的。但我怎样才能做到呢？因为我对构造函数和析构函数等一无所知......

Answer 1

$editor = new editor('reply.php?topic=100', 'simple');
echo $editor;

class editor
{
    private $url;
    private $type;

    public function __construct($url, $type)
    {
        $this->url = $url;
        $this->type = $type;
    }

    public function __toString()
    {
        if($this->type == 'simple'){
            return '<form action="' . $this->url . '"></form>';
        } else {
            return 'foobar';
        }
    }
}