使用PHP Mysqli从下拉列表中选择多个选项时如何显示数据库中的数据_Php_Mysql_Database

使用PHP Mysqli从下拉列表中选择多个选项时如何显示数据库中的数据

php mysql database

使用PHP Mysqli从下拉列表中选择多个选项时如何显示数据库中的数据,php,mysql,database,Php,Mysql,Database,脚本页面运行良好。在下一个仪表板页面中选择多个选项时，不会显示任何记录。请解决这个问题。我认为在仪表板页面中无法识别所选值 Script.php <?php include("connection.php") ?> <form id="script" name="script" action="dashboard.php" method="post"> <strong>Choose Script Name : </strong><se

脚本页面运行良好。在下一个仪表板页面中选择多个选项时，不会显示任何记录。请解决这个问题。我认为在仪表板页面中无法识别所选值

Script.php

<?php include("connection.php") ?>
<form id="script" name="script" action="dashboard.php" method="post">
    <strong>Choose Script Name : </strong><select name="script[]" id="select3" multiple=multiple style="margin: 20px;width:300px;">   
        <?php
        $result = $conn->query("select script_name from script_details ORDER BY script_name");
        while ($row = $result->fetch_assoc()) {
            unset($script_name);
            $script_name = $row['script_name'];
            echo '<option value="' . $id . '">' . $script_name . '</option>'; // Generated From database
        }
        ?>
    </select>
    <input type="submit" name="submit" id="button" value="View Dashboard" />
</form>

<table border="1">
    <tr align="center">
        <th>Number </th>      <th>Script Name</th>    <th> Date</th> 
    </tr> 
    <?php
    include("connection.php");
    $select = $_POST['script'];
    $selects = "SELECT * FROM script_details where script_name='$select'";
    $result = $conn->query($selects);
    echo "<table>";
    while ($row = $result->fetch_assoc()) {
        echo "<tr><td>" . $row["id"] . "</td><td>" . $row["script_name"] . "</td></tr>" . "</td><td>" . $row["date"] . "</td></tr>";
    }
    echo "</table>";
[This is script page Image. Selecting option from script_details database. Field name : script_name.][1]?>

<?php include("connection.php") ?>
<form id="script" name="script" action="dashboard.php" method="post">
    <strong>Choose Script Name : </strong>
    <select name="script[]" id="select3" multiple=multiple style="margin: 20px;width:300px;">   
        <?php
        $result = $conn->query("select id, script_name from script_details ORDER BY script_name");
        while ($row = $result->fetch_assoc()) {
            unset($script_name);
            $script_name = $row['script_name'];
            $id = $row['id'];
            echo '<option value="' . $id . '">' . $script_name . '</option>'; // Generated From database
        }
        ?>
    </select>
    <input type="submit" name="submit" id="button" value="View Dashboard" />
</form>

<table border="1">
    <tr align="center">
        <th>Number </th>      <th>Script Name</th>    <th> Date</th> 
    </tr> 
    <?php
    include("connection.php");
    $select = $_POST['script'];
    $ids = "'" . implode("','", $select) . "'";
    $selects = "SELECT * FROM script_details WHERE id IN ($ids)";
    $result = $conn->query($selects);
    while ($row = $result->fetch_assoc()) {
        echo "<tr>"
                . "<td>" . $row["id"] . "</td>"
                . "<td>" . $row["script_name"] . "</td>"
                . "<td>" . $row["date"] . "</td>"
            . "</tr>";
    }
    ?>
</table>


选择脚本名称：

Dashboard.php

<?php include("connection.php") ?>
<form id="script" name="script" action="dashboard.php" method="post">
    <strong>Choose Script Name : </strong><select name="script[]" id="select3" multiple=multiple style="margin: 20px;width:300px;">   
        <?php
        $result = $conn->query("select script_name from script_details ORDER BY script_name");
        while ($row = $result->fetch_assoc()) {
            unset($script_name);
            $script_name = $row['script_name'];
            echo '<option value="' . $id . '">' . $script_name . '</option>'; // Generated From database
        }
        ?>
    </select>
    <input type="submit" name="submit" id="button" value="View Dashboard" />
</form>

<table border="1">
    <tr align="center">
        <th>Number </th>      <th>Script Name</th>    <th> Date</th> 
    </tr> 
    <?php
    include("connection.php");
    $select = $_POST['script'];
    $selects = "SELECT * FROM script_details where script_name='$select'";
    $result = $conn->query($selects);
    echo "<table>";
    while ($row = $result->fetch_assoc()) {
        echo "<tr><td>" . $row["id"] . "</td><td>" . $row["script_name"] . "</td></tr>" . "</td><td>" . $row["date"] . "</td></tr>";
    }
    echo "</table>";
[This is script page Image. Selecting option from script_details database. Field name : script_name.][1]?>

<?php include("connection.php") ?>
<form id="script" name="script" action="dashboard.php" method="post">
    <strong>Choose Script Name : </strong>
    <select name="script[]" id="select3" multiple=multiple style="margin: 20px;width:300px;">   
        <?php
        $result = $conn->query("select id, script_name from script_details ORDER BY script_name");
        while ($row = $result->fetch_assoc()) {
            unset($script_name);
            $script_name = $row['script_name'];
            $id = $row['id'];
            echo '<option value="' . $id . '">' . $script_name . '</option>'; // Generated From database
        }
        ?>
    </select>
    <input type="submit" name="submit" id="button" value="View Dashboard" />
</form>

<table border="1">
    <tr align="center">
        <th>Number </th>      <th>Script Name</th>    <th> Date</th> 
    </tr> 
    <?php
    include("connection.php");
    $select = $_POST['script'];
    $ids = "'" . implode("','", $select) . "'";
    $selects = "SELECT * FROM script_details WHERE id IN ($ids)";
    $result = $conn->query($selects);
    while ($row = $result->fetch_assoc()) {
        echo "<tr>"
                . "<td>" . $row["id"] . "</td>"
                . "<td>" . $row["script_name"] . "</td>"
                . "<td>" . $row["date"] . "</td>"
            . "</tr>";
    }
    ?>
</table>


编号脚本名称日期
我会以以下方式处理：
$scriptsArr = $_POST['script'];
$scriptsStr = implode(',', $scriptsArr);

$selects = "SELECT * FROM script_details where script_name IN ($scriptsStr)";

我把它分成了几个变量，这样你就可以理解这个过程了。
希望我能帮忙
我希望您的理解是不安全的，我建议您阅读更多关于准备好的声明：

首先，您的代码易受sql攻击
在Scrip中，您没有在
标记中定义选项的值。首先定义值，为此您需要从数据库中获取
Script.php
<?php include("connection.php") ?>
<form id="script" name="script" action="dashboard.php" method="post">
    <strong>Choose Script Name : </strong><select name="script[]" id="select3" multiple=multiple style="margin: 20px;width:300px;">   
        <?php
        $result = $conn->query("select script_name from script_details ORDER BY script_name");
        while ($row = $result->fetch_assoc()) {
            unset($script_name);
            $script_name = $row['script_name'];
            echo '<option value="' . $id . '">' . $script_name . '</option>'; // Generated From database
        }
        ?>
    </select>
    <input type="submit" name="submit" id="button" value="View Dashboard" />
</form>

<table border="1">
    <tr align="center">
        <th>Number </th>      <th>Script Name</th>    <th> Date</th> 
    </tr> 
    <?php
    include("connection.php");
    $select = $_POST['script'];
    $selects = "SELECT * FROM script_details where script_name='$select'";
    $result = $conn->query($selects);
    echo "<table>";
    while ($row = $result->fetch_assoc()) {
        echo "<tr><td>" . $row["id"] . "</td><td>" . $row["script_name"] . "</td></tr>" . "</td><td>" . $row["date"] . "</td></tr>";
    }
    echo "</table>";
[This is script page Image. Selecting option from script_details database. Field name : script_name.][1]?>

<?php include("connection.php") ?>
<form id="script" name="script" action="dashboard.php" method="post">
    <strong>Choose Script Name : </strong>
    <select name="script[]" id="select3" multiple=multiple style="margin: 20px;width:300px;">   
        <?php
        $result = $conn->query("select id, script_name from script_details ORDER BY script_name");
        while ($row = $result->fetch_assoc()) {
            unset($script_name);
            $script_name = $row['script_name'];
            $id = $row['id'];
            echo '<option value="' . $id . '">' . $script_name . '</option>'; // Generated From database
        }
        ?>
    </select>
    <input type="submit" name="submit" id="button" value="View Dashboard" />
</form>

<table border="1">
    <tr align="center">
        <th>Number </th>      <th>Script Name</th>    <th> Date</th> 
    </tr> 
    <?php
    include("connection.php");
    $select = $_POST['script'];
    $ids = "'" . implode("','", $select) . "'";
    $selects = "SELECT * FROM script_details WHERE id IN ($ids)";
    $result = $conn->query($selects);
    while ($row = $result->fetch_assoc()) {
        echo "<tr>"
                . "<td>" . $row["id"] . "</td>"
                . "<td>" . $row["script_name"] . "</td>"
                . "<td>" . $row["date"] . "</td>"
            . "</tr>";
    }
    ?>
</table>


选择脚本名称：

在仪表板中做适当的标记
Dashboard.php
<?php include("connection.php") ?>
<form id="script" name="script" action="dashboard.php" method="post">
    <strong>Choose Script Name : </strong><select name="script[]" id="select3" multiple=multiple style="margin: 20px;width:300px;">   
        <?php
        $result = $conn->query("select script_name from script_details ORDER BY script_name");
        while ($row = $result->fetch_assoc()) {
            unset($script_name);
            $script_name = $row['script_name'];
            echo '<option value="' . $id . '">' . $script_name . '</option>'; // Generated From database
        }
        ?>
    </select>
    <input type="submit" name="submit" id="button" value="View Dashboard" />
</form>

<table border="1">
    <tr align="center">
        <th>Number </th>      <th>Script Name</th>    <th> Date</th> 
    </tr> 
    <?php
    include("connection.php");
    $select = $_POST['script'];
    $selects = "SELECT * FROM script_details where script_name='$select'";
    $result = $conn->query($selects);
    echo "<table>";
    while ($row = $result->fetch_assoc()) {
        echo "<tr><td>" . $row["id"] . "</td><td>" . $row["script_name"] . "</td></tr>" . "</td><td>" . $row["date"] . "</td></tr>";
    }
    echo "</table>";
[This is script page Image. Selecting option from script_details database. Field name : script_name.][1]?>

<?php include("connection.php") ?>
<form id="script" name="script" action="dashboard.php" method="post">
    <strong>Choose Script Name : </strong>
    <select name="script[]" id="select3" multiple=multiple style="margin: 20px;width:300px;">   
        <?php
        $result = $conn->query("select id, script_name from script_details ORDER BY script_name");
        while ($row = $result->fetch_assoc()) {
            unset($script_name);
            $script_name = $row['script_name'];
            $id = $row['id'];
            echo '<option value="' . $id . '">' . $script_name . '</option>'; // Generated From database
        }
        ?>
    </select>
    <input type="submit" name="submit" id="button" value="View Dashboard" />
</form>

<table border="1">
    <tr align="center">
        <th>Number </th>      <th>Script Name</th>    <th> Date</th> 
    </tr> 
    <?php
    include("connection.php");
    $select = $_POST['script'];
    $ids = "'" . implode("','", $select) . "'";
    $selects = "SELECT * FROM script_details WHERE id IN ($ids)";
    $result = $conn->query($selects);
    while ($row = $result->fetch_assoc()) {
        echo "<tr>"
                . "<td>" . $row["id"] . "</td>"
                . "<td>" . $row["script_name"] . "</td>"
                . "<td>" . $row["date"] . "</td>"
            . "</tr>";
    }
    ?>
</table>


编号脚本名称日期
致命错误：在从数据库生成的/nfs/c06/h01/mnt/175047选项值的布尔值上调用成员函数fetch_assoc（），以使其工作。但是dashbaord.php中有一个小小的变化$ids=“”。内爆（“，”，$id）。“；我把$id换成$select它的工作方式..非常感谢兄弟。。