我正在为mp3和mp4制作一个下载器，我想在php中有两个php文件，两个按钮调用两个php文件，但只有第一个php文件才有效。
popup.php的代码
<?php
include "downloadmp3.php";
include "downloadmp4.php";
?>
<html>
<head></head>
<body bgcolor="#E6E6E6">
<form method="post">
<label for="url">Download mp3:</label>
<input type="text" name="url" value="" id="url">
<input type="submit" name="submit" value="Download">
<hr>
</form>
<form method="post">
<label for="url1">Download mp4:</label>
<input type="text" name="url1" value="" id="url1">
<input type="submit" name="submit" value="Download">
</form>
</body>
</html>
downloadmp3.php的代码
<?php
if ($_SERVER['REQUEST_METHOD'] == 'POST'){
$url = (isset($_POST['url']) && !empty($_POST['url'])) ? $_POST['url'] : false;
if (!$url) {
echo "Vul alstublieft een url in";
} else {
$source = file_get_contents($url);
$source = urldecode($source);
// Verkrijg de video titel.
$vTitle_results_1 = explode('<title>', $source);
$vTitle_results_2 = explode('</title>', $vTitle_results_1[1]);
$title = trim(str_replace(' – YouTube', ”, trim($vTitle_results_2[0])));
// Extract video download URL.
$dURL_results_1 = explode('url_encoded_fmt_stream_map', "url=", $source);
$dURL_results_2 = explode('\u0026quality', $dURL_results_1[1]);
// Force download van d video.
$file = str_replace(' ', '_', strtolower($title)).'.mp4';
header("Cache-Control: public");
header("Content-Description: File Transfer");
header("Content-Disposition: attachment; filename=$file");
header("Content-Type: video/mp4");
header("Content-Transfer-Encoding: binary");
readfile($dURL_results_2[0]);
exit;
}
}
?>
和downloadmp4.php的代码
<?php
if ($_SERVER['REQUEST_METHOD'] == 'POST'){
$url = (isset($_POST['url1']) && !empty($_POST['url1'])) ? $_POST['url1'] : false;
if (!$url) {
echo "Vul alstublieft een url in";
} else {
$source = file_get_contents($url);
$source = urldecode($source);
// Verkrijg de video titel.
$vTitle_results_1 = explode('<title>', $source);
$vTitle_results_2 = explode('</title>', $vTitle_results_1[1]);
$title = trim(str_replace(' – YouTube', ”, trim($vTitle_results_2[0])));
// Extract video download URL.
$dURL_results_1 = explode('url_encoded_fmt_stream_map', "url1=", $source);
$dURL_results_2 = explode('\u0026quality', $dURL_results_1[1]);
// Force download van d video.
$file = str_replace(' ', '_', strtolower($title)).'.mp4';
header("Cache-Control: public");
header("Content-Description: File Transfer");
header("Content-Disposition: attachment; filename=$file");
header("Content-Type: video/mp4");
header("Content-Transfer-Encoding: binary");
readfile($dURL_results_2[0]);
exit;
}
}
?>
更新：提交MP3表格的表格。但是为MP4提交的表单不起作用。请提供一个解决方案，使其工作。
只有第一个php文件调用正在工作，因为以下if条件：
if ($_SERVER['REQUEST_METHOD'] == 'POST'){
因为downloadmp3.php已经被包括在内，所以它的if condition正在给出结果。使用适当的表单处理程序使其工作。最佳做法是为表单使用唯一名称。
在所有浏览器中，此代码对我来说都很好，下载的文件也很好：download-audio.php
<?php
$file = $_GET['file'];
header ('Content-type: octet/stream');
header ('Content-disposition: attachment; filename='.$file.';');
header('Content-Length: '.filesize($file));
readfile($file);
exit;
?>
test.html
<a href='download-audio.php?file=duetsong.mp3'>Download Duet song MP3</a>
<a href='download-audio.php?file=duetsong.mp4'>Download Duet song MP4</a>