最后在数组中添加的PHP替换了所有存储的数组值

Question

我想做的事情：

1. 从数据库中获取结果。
2. 通过分配给stdClass获取所需的值。
3. 将这些对象放在数组中。 （＆lt; -The problem）
4. 输出为JSON。

对象很好，他们得到正确的值。但是当它们被分配给数组一次时，它们会替换所有先前的数组值。

我正在使用CodeIgniter来处理数据库内容。

功能：

function get_prizes(){

    //All prize objects are stored here
    $prizes = array();

    //Prize object
    $prize = new stdClass();
    $prize->name1 = '';
    //$prize->type = '';

    //Getting the prizes from a simple database table
    $query = $this->db->get('prizes');

    if($query->num_rows() > 0){

        foreach ($query->result() as $row):

            $prize_name = $row->prize_name;
            $prize->name1 = $prize_name;
            //$prize->type = $prize_name;

            $prizes[] = $prize;

            echo " Item:  " . print_r($prizes, true) . "<br>";

        endforeach;

    }

    echo json_encode($prizes);

}

输出：

Item: Array ( [0] => stdClass Object ( [name1] => Radio ) ) 
Item: Array ( [0] => stdClass Object ( [name1] => Television ) [1] => stdClass Object ( [name1] => Television ) ) 
Item: Array ( [0] => stdClass Object ( [name1] => Toaster ) [1] => stdClass Object ( [name1] => Toaster ) [2] => stdClass Object ( [name1] => Toaster ) ) 
[{"name1":"Toaster"},{"name1":"Toaster"},{"name1":"Toaster"}]

我尝试过array_push（）。也做同样的事情。

Answer 1

您需要在foreach循环中实例化对象：

function get_prizes()
{
    // All prize objects are stored here
    $prizes = array();

    // Getting the prizes from a simple database table
    $query = $this->db->get('prizes');
    if ($query->num_rows() > 0) {
        foreach($query->result() as $row):

            // Prize object    
            $prize = new stdClass();

            // $prize->type = '';
            $prize->name1 = $row->prize_name;

            $prizes[] = $prize;

        endforeach;
    }

    echo json_encode($prizes);
}