Question

我有一个简单的PHP脚本连接到数据库，其表单将根据用户选择生成结果。我有一个嵌入wordpress页面的表单，一切正常，直到我对wordoress进行了更新。我认为数据库和php脚本很好，但表单本身不再加载值，请你帮我确保我的ui表单代码是正确的，以便加载正确的值：这是device.php文件：

    <?php

$mysqli = new mysqli("xxx", "xxx", "xxx", "xxx");
if ($mysqli->connect_errno) {
    echo "Failed to connect to MySQL: " . $mysqli->connect_error;
}
if (islet($_GET['devices'])) {
    $devices = $mysqli->query("SELECT * FROM devices");
    while ($device = $devices->fetch_assoc()) {
        echo "<option value='{$device['id']}'>{$device['device']}</option>";
    }
}

if (isset($_GET['get_device'])) {
    $device = $_GET['device'];
    $models = $mysqli->query("SELECT * FROM models WHERE device = " . $device . " GROUP BY model ORDER BY device DESC");
    while ($model = $models->fetch_assoc()) {
        echo "<option value='{$model['model']}'>{$model['model']}</option>";
    }
}

if (isset($_GET['get_ios'])) {
    $device = $_GET['device'];
    $model = $_GET['model'];
    $sql = "SELECT ios FROM models WHERE device =  {$device} AND model = '{$model}'";
    $o_ios = $mysqli->query($sql);
    while ($ios = $o_ios->fetch_assoc()) {
        echo "<option value='{$ios['ios']}'>{$ios['ios']}</option>";
    }
}

if (isset($_GET['get_result'])) {
    $device = $_GET['device'];
    $model = $_GET['model'];
    $ios = $_GET['ios'];
    $sql = "SELECT url FROM models WHERE device =  {$device} AND model = '{$model}' AND ios = '{$ios}' LIMIT 1";
    $o_url = $mysqli->query($sql);
    while ($url = $o_url->fetch_assoc()) {
        if ($url['url'] == 0) {
            echo "<p style='text-align: center' class='error'><b>Not Available</b><br />
            Sorry, currently Jailbreak is not available for your device. To stay updated please subscribe to our Newsletters,<br /> by entering your email in the box below:</p>";
        } else {
            $sql1 = "SELECT url FROM urls WHERE id = {$url['url']}";
            $o_row = $mysqli->query($sql1);
            $row = $o_row->fetch_assoc();
            echo "<p style='text-align: center' class='success'><b>Available</b><br />
                  Congratulations, Jailbreak is available for your device. To Jailbreak your device now, please click on the following link:<br />
                  <a target='_blank' href='{$row['url']}'>Jailbreak {$model} {$ios}</a></p>";
        }
    }
}

这是表单代码：

<div class="container_12">
<h4>To Jailbreak your device and download cydia, please select your device model, and iOS version then click Jailbreak:</h4>
<form id="form-wizard" action="devices.php">
<div class="grid_4">
<div style="padding: 20px; font-weight: bold;"><label for="idevice">iDevice:</label>
<select id="idevice" name="idevice">
<option value="0">---</option>
</select></div>
</div>
<div class="grid_4">
<div style="padding: 20px; font-weight: bold;"><label for="model">Model:</label>
<select id="model" name="model">
<option value="0">---</option>
</select></div>
</div>
<div class="grid_4">
<div style="padding: 20px; font-weight: bold;"><label for="ios">iOS:</label>
<select id="ios" name="ios">
<option value="0">---</option>
</select></div>
</div>
&lt;class='clear'&gt;
<p style="text-align: center;"><input type="hidden" value="submitted" />
<input type="submit" value="Jailbreak" /></p>

</form>
<p id="message-result"></p>

</div>

，这是错误日志中的错误： PHP致命错误：在第9行的devices.php中的非对象上调用成员函数fetch_assoc（）

表单未从连接到数据库的php文件加载

0 个答案: