php - 如何从类中传递数组

Question

我需要将数组从 m.php 传回 index.php 并循环打印每一行，但我找不到方法怎么做？任何建议将不胜感激。

下面的代码我在 m.php 中使用 return $rows 但 index.php 无法得到它..

索引.php

<?php
require 'm.php';

$select_news = new select_news();
$select_news->select_3();
print_r($rows);
foreach ($rows as $row){
?>
<div><?=$row['id']?></div>
...
<?php
}
?>

m.php

class select_news{
    public function select_3(){
        global $db;
        $sth = $db->prepare('SELECT * FROM news ORDER BY id DESC LIMIT 3');
        $sth->execute();
        $rows = $sth->fetchAll();
            return $rows;
    }
}

Answer 1

只需将该函数调用的值分配给一个变量……</p>

$select_news = new select_news();
$rows = $select_news->select_3();
print_r($rows);
foreach ($rows as $row){
?>
<div><?=$row['id']?></div>
...
<?php
}
?>

Answer 2

要将其转换为数组（如果我正确阅读了问题），您可以将其放在foreach语句上方：

$rows = unserialize(serialize(json_decode(json_encode((array) $rows), 1)));