使用下拉列表自动填充数据

时间:2011-05-03 18:04:29

标签: php text drop-down-menu field populate

ALL EDITED

您好,

如何通过选择下拉列表自动填充db中的数据?我的下拉结果也已经出现,代码如下:

<?php
    echo '<tr>
    <td>'.$customer_data.'</td>
    <td><select name="customer_id" id="customer_id" onchange="getCustomer();">';

    foreach ($customers as $customer) {
        if ($customer['customer_id'] == $customer_id) {
            echo '<option value="'.$customer['customer_id'].'" selected="selected">'.$customer['name'].'</option>';
        } else {
            echo '<option value="'.$customer['customer_id'].'">'.$customer['name'].'</option>';
        }
    }
    echo '</select>
        </td>
    </tr>';
?>

将html视图代码设为

<select name="customer_id" id="customer_id" onchange="getCustomer();">
  <option value="8">admin</option>
  <option value="6">customer1</option>
  <option value="7"  selected="selected">FREE</option>
</select>

现在,如果其中一个下拉列表被选中,我想要另一个例如<?php echo $firstname; ?>, <?php echo $lastname; ?>

出现在

<tr>
<td><div  id="show"></div></td>
</tr>

基于客户ID /名称选择

要做到这一点,我尝试使用json调用如下:

<script type="text/javascript"><!--
function getCustomer() {
    $('#show input').remove();
    $.ajax({
        url: 'index.php?p=customer/customers&customer_id=' + $('#customer_id').attr('value'),
        dataType: 'json',
        success: function(data) {
            for (i = 0; i < data.length; i++) {
                $('#show').append('<input type="text" name="customer_id" value="' + data[i]['customer_id'] + '" /><input type="text" name="firstname" value="' + data[i]['firstname'] + '" />');
            }
        }
    });
}
getCustomer();
//--></script>

php调用json放在customer.php上,url index.php?p = page / customer)

public function customers() {
    $this->load->model('account/customer');
    if (isset($this->request->get['customer_id'])) {
        $customer_id = $this->request->get['customer_id'];
    } else {
        $customer_id = 0;
    }

    $customer_data = array();
    $results = $this->account_customer->getCustomer($customer_id);
    foreach ($results as $result) {
        $customer_data[] = array(
            'customer_id' => $result['customer_id'],
            'name'       => $result['name'],
            'firstname'       => $result['firstname'],
            'lastname'      => $result['lastname']
        );
    }

    $this->load->library('json');
    $this->response->setOutput(Json::encode($customer_data));
}

和db

public function getCustomer($customer_id) {
    $query = $this->db->query("SELECT DISTINCT * FROM " . DB_PREFIX . "customer WHERE customer_id = '" . (int)$customer_id . "'");
    return $query->row;
}

但是我得到了错误的回复,如下所示

enter image description here

有人请问如何更好地解决它?提前谢谢

2 个答案:

答案 0 :(得分:0)

PHP编码风格的一些东西: 对于PHP代码块,不要为每一行使用新的php-Tags。此外,如果您想要PHP的HTML输出,可以使用echo-Method来执行此操作。所以你的代码看起来像这样:

<?php
    echo '<tr>
    <td>'.$customer.'</td>
    <td><select name="customer_id">';

    foreach ($customers as $customer) {
        if ($customer['customer_id'] == $customer_id) {
            echo '<option value="'.$customer['customer_id'].'" selected="selected">'.$customer['name'].'</option>';
        } else {
            echo '<option value="'.$customer['customer_id'].'">'.$customer['name'].'</option>';
        }
    }
    echo '</select>
        </td>
    </tr>';
?>

瘦,是每次PHP-Interpreter找到一个开放的PHP-Tag时,它开始解释它的代码,当它找到一个结束标记时,它就会停止这样做。因此,在您的代码中,解释器始终启动和停止。这不是很好的表现。

我想你想设置文本字段的值?这不是PHP的功能。这更像是一个JavaScript,因为它实际上发生在浏览器中,而不是在服务器上。

答案 1 :(得分:0)

而不是:

    success: function(data) {
        for (i = 0; i < data.length; i++) {
            $('#show').append('<input type="text" name="customer_id" value="' + data[i]['customer_id'] + '" /><input type="text" name="firstname" value="' + data[i]['firstname'] + '" />');
        }
    }
在您的JS AJAX调用中

执行此操作:

    success: function(data) {
        $('#show').append('<input type="text" name="customer_id" value="' + data['customer_id'] + '" /><input type="text" name="firstname" value="' + data['firstname'] + '" />');
    }

因为您的PHP函数只返回一个对象。如果然后循环遍历对象属性你实际上循环遍历属性值的一个字符......