在codeigniter的form_multiselect()中设置多个选定的值 [英] Set multiple values as selected in form_multiselect() in codeigniter

问题描述

我想知道是否有一种方法可以在form_multiselect()中设置多个(例如3个)选定"的值. 我使用key($ selectie)使其仅使用1个值，其中$selectie是我的查询，用于从数据库中获取特定公司ID的值.

I wonder if there's a way of setting multiple (say 3) values 'selected' in form_multiselect(). I got it working with only 1 value using key($selectie) where $selectie is my query to get the values form the database for a specific company id.

我的模型查询如下:

function getselection($id2)
{
    $this->db->from('bedrijfcategorieen');
    $this->db->join('categorieen', 'bedrijfcategorieen.idcategorieen = categorieen.idcategorieen');
    $this->db->where('bedrijfcategorieen.idbedrijven', $id2);
    $query = $this->db->get();

    return $query->result_array();
}

我的控制器:

    $data['selected'] = $this->members_model->getselection($id2);

我的观点:

<?php
    foreach($selected as $row){
        $selectie[$row['idcategorieen']] = $row['Categorie'];
    }
    echo '<pre>';
    print_r($selectie);
    echo '</pre>';
?>

<tr>
<td><?= form_label('Categorieen'); ?></td>
<td><?= form_multiselect('categorieen[]', $opties, key($selectie)); ?></td>
</tr>

print_r($ selectie);产生:

print_r($selectie); produces:

Array
(
    [11] => Webdesign
    [12] => Vlaggen
    [13] => Auto-s
)

推荐答案

像这样更改视图

<?php
    foreach($selected as $row){
        $selectie[] = $row['idcategorieen'];
    }
?>

<tr>
   <td><?= form_label('Categorieen'); ?></td>
    <td><?= form_multiselect('categorieen[]', $opties, $selectie); ?></td>
</tr>

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