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我在这段代码中的目标是为用户创建稍后应用部分,我创建了一个隐藏按钮来获取确切帖子的 id,我正在获取 id,但是当我绑定并执行时,我收到了这个警告,我检查了几个其他人的问题与我的类似,但他们似乎并没有解决我的确切问题。我到底要绑定什么来获取具有该特定 ID 的帖子的信息

这是函数:

public function Index(){

    if(isset($_POST['submit'])){
        $id = $_POST['applylater_id'];// I got this from a button the user is to click
        // INSERT INTO MYSQL
        $this->query('INSERT INTO apply_later(id, title, body, link, user_id, user_name) SELECT id, title, body, link, user_id, user_name FROM shares WHERE id = :id');
        $this->bind(':title', 'title');
        $this->bind(':body', 'body');
        $this->bind(':link', 'link');
        $this->bind(':user_id', 1);
        $this->bind(':user_name', 'user_name');         
        $this->bind(':id', $id);
        $this->execute();

        //Verify
        if($this->lastInsertId()){
            //Redireect
            Messages::setMsg('Successfully Added to your apply Later section', 'successMsg'); 
            header( "refresh:2; url=http://localhost/phpsandbox/phptutorials/website2/shares/applylater" );

        }
    }
    //
    $this->query('SELECT * FROM shares ORDER by id desc ');
    $rows = $this->resultSet();
    return $rows;
}

//这是我在上面调用的绑定和执行函数

public function query($query){
    $this->stmt = $this->dbh->prepare($query);
}


public function bind ($param, $value, $type =null) {
if(is_null($type)){
    switch(true) {
        case is_int($value):
            $type = PDO::PARAM_INT;
            break;
        case is_bool($value):
            $type = PDO::PARAM_BOOL;
            break;
        case is_null($value):
            $type = PDO::PARAM_NULL;
            break;
            default:
            $type = PDO::PARAM_STR;
    }

        }
    $this->stmt->bindValue($param, $value, $type);
}

public function execute(){
    return $this->stmt->execute();
}

现在这是我使用的主要形式,但它可以获取 id 但不会在屏幕上显示

<?php foreach ($viewmodel as $item) : ?>
    <div class="well">
        <div class="text-center">
            <img src="http://localhost/phpsandbox/phptutorials/website2/assets/image/job.png" class="img-circle" alt="Cinque Terre" width="50" height="50">

        <h3> <?php echo $item['title']; ?></h3>
        <small> Username: <?php echo $item['user_name']; ?></small>
        <br />
        <small><?php echo $item['create_date']; ?></small>
        </div>
        <hr />
        <p><?php echo $item['body']; ?></p>
        <br />
        <div class="text-center">
            <a href="<?php echo $item['link']; ?>" target="_blank"  class="btn btn-info">Apply Now</a>
            <br />

        </div>
        <hr />
        <form method="post" action="<?php $_SERVER['PHP_SELF']; ?>" >

// 当你点击提交时,我想获取这个确切帖子的 id 并将数据发送到不同的表中,这样我就可以在不同的页面中显示这个确切的帖子。

                <input type="hidden" name="applylater_id" value="<?php echo $item['id']; ?>">
                <input class="btn btn-primary" type="submit" name="submit" value="Apply Later">
        </form>

这是我的桌子

    </div>[enter image description here][1]
4

1 回答 1

2

仅将值绑定到您有占位符的准备好的语句。

$this->query('INSERT INTO apply_later(id, title, body, link, user_id, user_name)
              SELECT id, title, body, link, user_id, user_name FROM shares WHERE id = :id');
//                       only 1 placeholder-------------------------------------------^^^

删除这些行,因为它们未在准备好的语句中表示:
$this->bind(':title', 'title');
$this->bind(':body', 'body');
$this->bind(':link', 'link');
$this->bind(':user_id', 1);
$this->bind(':user_name', 'user_name');

只需绑定:id

$this->bind(':id', $_POST['applylater_id']);
于 2017-10-23T06:00:50.427 回答