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我花了三天的时间讨论这个问题。我尝试了几个我在这个网站上找到的解决方案,但收效甚微。我想要做的是使用PHP变量在iframe中播放YouTube视频。我也试图用相同的输入运行两个MySQL查询。这是我的代码,因为它现在。在此刻,当我运行时,我得到了我想要的表格,但我仍然需要格式化它。但iframe甚至没有出现。我以前的解决方案,将拉起iframe,但内部将是一个错误,我基本上是通过sql查询到iframe。使用PHP变量作为iframe中的播放YouTube视频的来源
<?php
$servername = "localhost";
$username = "root";
$password = "password";
$dbname = "purpletrainer";
// Create connection
$conn = new mysqli($servername, $username, $password);
// Check connection
if ($conn->connect_error) {
die("Connection failed: " . $conn->connect_error);
}
//echo "Connected successfully";
$trainingid = $_POST["trainingid"];
$sql = "SELECT * FROM purpletrainer.trainingcontent WHERE trainingid = '$trainingid';";
$result = $conn->query($sql);
if ($result->num_rows > 0) {
echo "<table><tr><th>Training ID</th><th>Title</th><th>Training URL</th><th>Training Quiz URL</th></tr>";
// output data of each row
while ($row = $result->fetch_assoc()) {
echo "<tr><td>" . $row["trainingid"] . "</td><td>" . $row["trainingtitle"] . "</td><td>" . $row["trainingurl"] . "</td><td>" . $row["trainingquizurl"] . "</td></tr>";
}
echo "</table>";
} else {
echo "Error: " . $sql . "<br>" . $conn->error;
}
$conn->close();
?>
<?php
$servername = "localhost";
$username = "root";
$password = "password";
$dbname = "purpletrainer";
// Create connection
$conn = new mysqli($servername, $username, $password);
// Check connection
if ($conn->connect_error) {
die("Connection failed: " . $conn->connect_error);
}
$videosql = "SELECT trainingurl FROM purpletrainer.trainingcontent WHERE trainingid = '$trainingid';";
$videoresult = $conn->query($videosql);
if ($videoresult->num_rows > 0) {
while ($videourl = $videoresult->fetch_assoc()) {
}
} else {
echo "Error: " . $sql . "<br>" . $conn->error;
}
$conn->close();
?>
<div class="col-md-6">
<iframe width="420" height="315" src= '<?php echo htmlspecialchars($videourl); ?>' frameborder="0" allowfullscreen></iframe>
</div>
'$ videourl'变量实际上会保留在循环外部,它在全局范围内定义,但它将包含在循环的最后一次迭代期间分配给它的值 – andrew
谢谢@andrew,不知道。从来没有这样想过。相应地更新我的答案。 – NoobishPro
非常感谢,这更接近我所需要的。该视频仍然没有显示,但iframe是我得到一个错误,该服务器上找不到网址 –