我的数组在php中没有正确生成

Question

我的数组有问题。不知怎的，它不知道我的数组在哪里。我尝试使用以下代码：

while($row = $stmt->fetch(PDO::FETCH_ASSOC)) {              
    $pers_inventar = array();

    $pers_id = $row['pers_id'];
    $pers_person = array('birthday' => $row['pers_birthday'],'lastname' => $row['pers_lastname'],'firstname' => $row['pers_firstname'],'job' => $row['pers_job']);
    $pers_inventar[$pers_id][] = $pers_person;
}

也许我的功能错了。谢谢你的帮助

Answer 1

问题是你每次迭代都要清除你的数组。将数组声明放在循环之前。

$pers_inventar = array();

while($row = $stmt->fetch(PDO::FETCH_ASSOC)) {                
    $pers_id = $row['pers_id'];
    $pers_person = array('birthday' => $row['pers_birthday'],'lastname' => $row['pers_lastname'],'firstname' => $row['pers_firstname'],'job' => $row['pers_job']);
    $pers_inventar[$pers_id][] = $pers_person;
}

Answer 2

你可以这样试试：

$pers_inventar = array();
while($row = $stmt->fetch(PDO::FETCH_ASSOC)) {              
              $pers_id = $row['pers_id'];
              $pers_person = array('birthday' => $row['pers_birthday'],'lastname' => $row['pers_lastname'],'firstname' => $row['pers_firstname'],'job' => $row['pers_job']);
              $pers_inventar[$pers_id][] = $pers_person;
        }

最好的是，当你先添加一个空数组然后进入你的while循环时。

另一个建议：

为什么要创建一个数组来放入＆＃34; pers_id＆＃34;阵列？ 为什么不创建你的＆＃34; pers_id＆＃34;数组并在那里添加信息。