Question

我是php的新手，我有一张表customer_name如何在我的页面中将此客户名称作为组合框。

然后我点击提交只存储id

请查询并编码此

Answer 1

您可以选择id和name。

SELECT `id`, `name` FROM `customer_name`

然后，您将回显select，将value属性设置为id，将文本节点设置为name。

这将在表单提交上传送id。

Answer 2

显示来自db的选择框就像这样

<select name="categoryID">
<?php
$sql = "SELECT customer_id, customer_name FROM customers ".
"ORDER BY customer_name";

$rs = mysql_query($sql);

while($row = mysql_fetch_array($rs))
{
  echo "<option value=\"".$row['customer_id']."\">".$row['customer_name']."</option>";
}
?>
</select>

阅读more

Answer 3

首先，Don't use mysql_* functions in new code。它们不再被维护and are officially deprecated。请参阅red box？转而了解prepared statements，并使用PDO或MySQLi - this article将帮助您确定哪个。如果您选择PDO here is a good tutorial。

示例代码，希望有所帮助

<?php 
$db_name = "db";
$connection = mysql_connect('localhost','root','') or die(mysql_error());
$db = mysql_select_db($db_name,$connection) or die(mysql_error());
$sql = "SELECT customer_name,id from customers ORDER BY customer_name desc";
$result = mysql_query($sql,$db) or die(mysql_error());
if(mysql_num_rows($result)>=1){
    $form = '<form method="POST" action="">
    <p>Customer name:<select size="1" name="customer">';
    while ($row = mysql_fetch_array($result)) {
        $form .='<option value="'.$row['id'].'">'.ucwords($row['customer_name']).'</option>';
    }
    $form .=' </select></p><p><input type="submit" value="Submit"></p></form>';
}
echo $form;
?>

Answer 4

我认为这可能对你有帮助。

<?php

    // make connection with database
    $db_name = "test";
    $connection = mysql_connect('localhost','root','') or die(mysql_error());
    $db = mysql_select_db($db_name,$connection) or die(mysql_error());

    $sql = "SELECT customer_id, customer_name FROM customer_name";
    $result = mysql_query($sql);

    // start process of making combo box
    $comboBox = "<select name='cust_name'>";

    while ($row = mysql_fetch_array($result)) {
      // add option with list
      $comboBox .= "<option value='". $row['customer_id'] ."'>". $row['customer_name'] ."</option>";
    }

    $comboBox .= "</select>";

    // echo this comboBox variable where you what to display this comboBox. like this
    echo $comboBox;

    //  when you put this combo box within form you can get vlaue of this comboBox like this

        // $_POST['cust_name']; // this return customer id of selected customer

?>

mysql从一个表中获取一个字段到另一个页面列表类型

4 个答案: