Question

我正在使用Wordpress / WooCommerce。我的客户不希望用户创建帐户来购买东西，但仍希望存储客户地址，以便当用户回到网站以供将来使用时自动填充。

我有一个学校项目，我将一个注释保存到数据库（文本框中的纯文本）。它抓住了＆＃34;笔记＆＃34;已经在数据库中，并向您显示它们，并提供更新注释的选项。这会更新数据库条目。

我正在尝试使用此代码来处理woocommerce。除了桌子的名字，我还没有太大的变化。

数据库连接正常，它根据请求从表中提取内容。 我的问题是：当我点击＆＃34;更新＆＃34;时，数据库没有更新条目。我不确定这是不是因为我试图在woocommerce中使用它，而且购物车引起了问题？但它与我的工作学校项目实际上是相同的代码。

您可以在此处看到它（一旦您向购物车添加内容）： http://www.onelifehealthycuisine.com/mobile/checkout/

目前，我只是想让它更新地址，一旦有效，我会在其他单元格中添加更新。

数据库

名称：tbl_stored_address

| ID | ip_address |地址|城市|省|邮政|

测试条目： 2,96.48.1.29,123 fake street，vancouver，bc，v3c 5r6

function dbConnect(){
    $db_host = 'xxx.xxx.com';
    $db_un = 'xxxx';
    $db_pass = 'xxxx';
    $db_name = 'xxxx';
    $pdo = new PDO("mysql:host=$db_host;dbname=$db_name;charset=utf8",$db_un,$db_pass);

    mysql_connect($db_host, $db_un, $db_pass) or die(mysql_error());
    mysql_select_db($db_name) or die(mysql_error());    
}
dbConnect();

function getAddys(){
    $user_id = '96.48.1.29'; //get user IP
    $query = "SELECT tbl_stored_address.address, tbl_stored_address.id FROM tbl_stored_address WHERE tbl_stored_address.ip_address ='".$user_id."';";
    $result = mysql_query($query) or die(mysql_error());
    //saves number of rows returned
    $rowCount = mysql_num_rows($result);
    echo "<form enctype='multipart/form-data' action='form-checkout.php' method='post'>";
    while ($row = mysql_fetch_array($result, MYSQL_ASSOC))
    {
        echo "<textarea name='address".$row['id']."' id='address".$row['id']."'>".$row['address']."</textarea><br/>";
    }
    echo "<br/><input type='submit' value='Update Note(s)' name='updateNote'/><br/>";
    echo "</form>";
}
//this will check if the user clicked on "update" for a note, and then update the correct notes using the ID
if(isset($_POST['updateNote']))
{
    $user_id = '96.48.1.29'; //get user IP
    $query = "SELECT tbl_stored_address.id FROM tbl_stored_address WHERE tbl_stored_address.ip_address ='".$user_id."';";
    $result = mysql_query($query) or die(mysql_error());
    while ($row = mysql_fetch_array($result, MYSQL_ASSOC))
    {
        if((isset($_POST['address'.$row['id'].'']))){
            $value = $_POST['address'.$row['id'].''];
            $theID = $row['id'];
            $query2 = "UPDATE tbl_stored_address SET tbl_stored_address.address='".mysql_real_escape_string($value)."' WHERE tbl_stored_address.id ='".$theID."';";
            $result2 = mysql_query($query2) or die(mysql_error());
        }
    }
}

?>      

<h2>Delivery Address</h2><br/><br/>

<?php getAddys(); ?>

**** **** UPDATE

我尝试将代码添加到没有woocommerce的页面并直接访问PHP页面，它更新了数据库：http://www.onelifehealthycuisine.com/mobile/wp-content/themes/onelife/page-test.php

因此，URL不以.php文件结尾这一事实？或者woocommerce模板中的某些内容不允许我正确运行表单？我似乎无法弄明白。

Answer 1

假设tbl_stored_address.id是int，请执行以下操作：

WHERE tbl_stored_address.id ='".$theID."'

不匹配任何东西。使用

WHERE tbl_stored_address.id =".$theID."

话虽如此，您不应该使用mysql_函数，并且DEFINITELY不应该使用字符串连接来构建您的查询。话虽这么说，这是你的脚本更新为使用MySQLi扩展：

<?php
    function dbConnect() 
    {
        $db_host = 'xxx.xxx.com';
        $db_un = 'xxxx';
        $db_pass = 'xxxx';
        $db_name = 'xxxx';

        $conn = mysqli_connect($db_host, $db_un, $db_pass, $db_name) or die(mysqli_error());       
    }

    dbConnect();

    function getAddys() 
    {
        $user_id = '96.48.1.29'; //get user IP
        $query = "SELECT tbl_stored_address.address, tbl_stored_address.id FROM tbl_stored_address WHERE tbl_stored_address.ip_address = '" . $user_id . "';";
        $result = mysqli_query($conn, $query) or die(mysqli_error($conn));

        //saves number of rows returned
        $rowCount = mysqli_num_rows($conn, $result);
        echo "<form enctype='multipart/form-data' action='form-checkout.php' method='post'>";
        while ($row = mysqli_fetch_assoc($conn, $result))
        {
            echo "<textarea name='address".$row['id']."' id='address" . $row['id'] . "'>" . $row['address'] . "</textarea><br/>";
        }
        echo "<br/><input type='submit' value='Update Note(s)' name='updateNote'/><br/>";
        echo "</form>";
    }

    //this will check if the user clicked on "update" for a note, and then update the correct notes using the ID
    if(isset($_POST['updateNote']))
    {
        $user_id = '96.48.1.29'; //get user IP
        $query = "SELECT tbl_stored_address.id FROM tbl_stored_address WHERE tbl_stored_address.ip_address = '" . $user_id . "';";
        $result = mysqli_query($conn, $query) or die(mysqli_error($conn));
        while ($row = mysqli_fetch_assoc($conn, $result))
        {
            if((isset($_POST['address' . $row['id']])))
            {
                $value = $_POST['address' . $row['id']];
                $theID = $row['id'];
                $query2 = "UPDATE tbl_stored_address SET tbl_stored_address.address = '" . mysqli_real_escape_string($conn, $value) . "' WHERE tbl_stored_address.id = " . $theID . ";";
                $result2 = mysqli_query($conn, $query2) or die(mysqli_error($conn));
            }
        }
    }  
?>

<h2>Delivery Address</h2><br /><br />

<?php getAddys(); ?>

MySQLi扩展反转了您可能习惯的参数顺序，连接是第一个参数。与MySQL扩展一样，如果省略连接对象，扩展函数将尝试重用现有的开放连接。

由于我们确实不希望在我们的SQL中使用字符串连接，因此您需要熟悉使用MySQli扩展支持的预准备语句。这是您准备语句的代码：

<?php
    function dbConnect() 
    {
        $db_host = 'xxx.xxx.com';
        $db_un = 'xxxx';
        $db_pass = 'xxxx';
        $db_name = 'xxxx';

        $conn = mysqli_connect($db_host, $db_un, $db_pass, $db_name) or die(mysqli_error());  
    }

    dbConnect();

    function getAddys() 
    {
        $user_id = '96.48.1.29'; //get user IP
        if ($query = mysqli_prepare($conn, "SELECT tbl_stored_address.address, tbl_stored_address.id FROM tbl_stored_address WHERE tbl_stored_address.ip_address = ?;")) 
        {
            mysqli_stmt_bind_param($query, "s", $user_id); # 's' indicates that this parameter is a string
            mysqli_stmt_execute($query);

            mysqli_stmt_bind_result($query, $row);

            echo "<form enctype='multipart/form-data' action='form-checkout.php' method='post'>";
            while (mysqli_stmt_fetch(($query))
            {
                echo "<textarea name='address" . $row['id'] . "' id='address" . $row['id'] . "'>" . $row['address'] . "</textarea><br/>";
            }
            echo "<br/><input type='submit' value='Update Note(s)' name='updateNote'/><br/>";
            echo "</form>";

            mysqli_stmt_close($query); 
        }
    }

    //this will check if the user clicked on "update" for a note, and then update the correct notes using the ID
    if(isset($_POST['updateNote']))
    {
        $user_id = '96.48.1.29'; //get user IP
        if ($query = mysqli_prepare($conn, "SELECT tbl_stored_address.address, tbl_stored_address.id FROM tbl_stored_address WHERE tbl_stored_address.ip_address = ?;")) 
        {
            mysqli_stmt_bind_param($query, "s", $user_id); # 's' indicates that this parameter is a string
            mysqli_stmt_execute($query);

            mysqli_stmt_bind_result($query, $row);

            while (mysqli_stmt_fetch(($query))
            {
                if((isset($_POST['address' . $row['id']])))
                {
                    $value = $_POST['address' . $row['id']];
                    $theID = $row['id'];

                    if ($updateQuery = mysqli_prepare($conn, "UPDATE tbl_stored_address SET tbl_stored_address.address = ? WHERE tbl_stored_address.id = ?;")) 
                    {
                        $updateQuery = "UPDATE tbl_stored_address SET tbl_stored_address.address = ? WHERE tbl_stored_address.id = ?;";

                        mysqli_stmt_bind_param($updateQuery, "s", $value); # 's' indicates that this parameter is a string
                        mysqli_stmt_bind_param($updateQuery, "i", $theID); # 'i' indicates that this parameter is an integer
                        mysqli_stmt_execute($updateQuery);
                    }
                }
            }

            mysqli_stmt_close($query); 
        }
    }  
?>

<h2>Delivery Address</h2><br /><br />

<?php getAddys(); ?>

上面的代码可能存在错误，因此需要注意。

您可以在PHP.net网站上找到学习MySQLi扩展所需的一切：http://php.net/manual/en/book.mysqli.php。您还可以找到PDO的文档，这是我在PHP编码时使用的最后一个扩展。

数据库未更新（在woocommerce中集成）

1 个答案: