Question

如果之前已经涵盖过，我道歉。我查看了所有的建议，似乎没有什么符合我的需要。

无论如何，我正在尝试开发一个汽车零件库，其中以下信息存储在名为＆＃34; auto_parts＆＃34;的表格中：

分销商
地址
市
国家
邮编
电话号码
SKU
部分
新建或已使用
年
制作/模特
价格

The table looks like this:

我希望客户能够提交一份表格，询问他们以下问题：

城市，州，部分，新的或二手的，年份和品牌/型号，

将查询我的数据库并输出符合以前条件的表格列上的所有信息：

查询输出：

分销商
地址
市
国家
邮编
电话号码
SKU
部分
新建或已使用
价格

以下是我的表单的缩写版本：

<form action="parts_query.php" method="get">
<h2 align="center">Find Auto Part</h2>
<strong>City:</strong> 
<br />
<input type="text" name="City" value="City" required>
<br />
<strong>State:</strong> 
<br />
<select name="State" size="1" required><option selected="selected">Choose One:
<option>AL
<option>AK
<option>AZ
<option>AR
<option>CA
<option>...
</select>
<br />
<strong>Select Part:</strong>
<br />
<select name="Part" size="1" required><option selected="selected">Choose One:
<option>A Pillar
<option>A/C Compressor
<option>A/C Compressor Clutch Only
<option>A/C Condenser
<option>A/C Condenser Fan
<option>A/C Control Computer
<option>A/C Evaporator
<option>A/C Evaporator Housing only
<option>A/C Heater Control (see also Radio or TV Screen)
<option>A/C Hose
<option>Accelerator Parts
<option>Adaptive Cruise Projector
<option>...
</select>
<br />
<strong>New or Used?</strong>
<br />
<select name="New_Used" size="1"><option selected="selected">Choose One:
<option>New
<option>Used
</select>

<br />
<strong>Vehicle Year:</strong> 
<br />  
<select name="Year" required><option selected="selected">Choose One:
<option value="2016">2016</option>
<option value="2015">2015</option>
<option value="2014">2014</option>
<option value="2013">2013</option>
<option value="2012">2012</option>
</select>
<br />

<strong>Vehicle Make / Model:</strong><br /> 
<select name="Make_Model" required><option selected="selected">Choose One:
<option>AMC Ambassador
<option>AMC American
<option>AMC AMX
<option>...
</select>
<br />
<br />
<input class="btn" type="submit" value="Submit">
</form>

我尝试过多种查询，在我的数据库表中搜索通过我的表单提交的上述信息，然后将所有相关信息（如上所述）输出到HTML表格，但似乎没有任何效果。我仍然很擅长使用数据库，如果我的问题看起来多余或过于宽泛，我再次道歉。

我不记得parts_query.php原来是怎么看的，因为我已经改变了很多，但我现在看起来像这样：

    <?php
//Connecting to sql db.
$connect = mysqli_connect("localhost","root","","autoparts_bank");

$query = "SELECT * FROM auto_parts WHERE City = [] AND Part = [] AND Year = [] AND Make_Model = []"
$result = mysql_query($query);

echo "<table>"; // start a table tag in the HTML

while($row = mysql_fetch_array($result)){   //Creates a loop to loop through results
echo "<tr>
<td>" . $row['Distributor'] . "</td>
<td>" . $row['Address'] . "</td>
<td>" . $row['City'] . "</td>
<td>" . $row['State'] . "</td>
<td>" . $row['Zip'] . "</td>
<td>" . $row['Phone'] . "</td>
<td>" . $row['Part'] . "</td>
<td>" . $row['New_Used'] . "</td>
<td>" . $row['Price'] . "</td>
</tr>";  //$row['index'] the index here is a field name
}

echo "</table>"; 

mysql_close(); //Make sure to close out the database connection
?>

<?php
//Connecting to sql db.
$connect = mysqli_connect("localhost","root","","autoparts_bank");
//Sending form data to sql db.
mysqli_query($connect,"INSERT INTO `auto_parts` (`Distributor`, `Address`, `City`, `State`, `Zip`, `Phone_No`, `SKU`, `Part`, `New_Used`, `Year`, `Make_Model`, `Price`) 
VALUES ('$_POST[Distributor]', '$_POST[Address]', '$_POST[City]', '$_POST[State]', '$_POST[Zip]', '$_POST[Phone_No]', '$_POST[SKU]', '$_POST[Part]', '$_POST[New_Used]', '$_POST[Year]', '$_POST[Make_Model]', '$_POST[Price]')");
?>

Answer 1

要将提交的表单数据返回到外部页面，只需检索$POST or $GET form个变量，然后将其作为parameters in SQL query传递：

<?php

// RETRIEVE FORM DATA (consider using $POST array to avoid url show and character limit)
$city = $_GET["City"];
$state = $_GET["State"];
$part = $_GET["Part"];
$new_used = $_GET["New_Used"];
$year = $_GET["Year"];
$make_model = $_GET["Make_Model"];

// DATABASE CONNECTION 
// (consider saving credentials below in external .php file and required in this script)
$servername = "localhost";
$username = "root";
$password = "****";
$dbname = "autoparts_bank";

$conn = new mysqli($servername, $username, $password, $dbname);

// QUERY PREPARATION AND EXECUTION
$query = "SELECT * FROM auto_parts 
          WHERE City = ? AND Part = ? AND Year = ? AND Make_Model = ?";
$stmt = $conn->prepare($query);

if ($stmt) { 

    $stmt->bind_param("ssss", $city, $part, $year, $make_model);
    $stmt->execute();
    $stmt->store_result();
    $result = $stmt->get_result();

    echo "<table>";

    // LOOP THROUGH RESULTS
    while ($row = mysqli_fetch_assoc($result)) {  
        echo "<tr>
               <td>" . $row['Distributor'] . "</td>
               <td>" . $row['Address'] . "</td>
               <td>" . $row['City'] . "</td>
               <td>" . $row['State'] . "</td>
               <td>" . $row['Zip'] . "</td>
               <td>" . $row['Phone'] . "</td>
               <td>" . $row['Part'] . "</td>
               <td>" . $row['New_Used'] . "</td>
               <td>" . $row['Price'] . "</td>
             </tr>";  
    }

    echo "</table>"; 

    $stmt->free_result();
    $stmt->close();

} else {
    echo "query failed: ".$conn->error; 
}

// CLOSE CONNECTION
$conn->close();

?>

基于HTML表单中的用户输入从SQL数据库表中检索列

1 个答案: