当点击提交按钮时，我使用以下代码将数据存储在wordpress数据库中，现在代码通过将数据提交到wordpress数据库来工作。
if ($_POST['subscribe_btn'])
{
require("connect.php");
$user = $_POST['user'];
$email = $_POST['email'];
if($user)
{
if(preg_match("/^[_a-z0-9-]+('.[_a-z0-9-]+)*@[a-z0-9-]+('.[a-z0-9-]+)*('.[a-z]{2,3})$/i", $email)){
$query=mysql_query("SELECT * FROM wp_newslettter WHERE email='$email'") or exit(mysql_error());
$numrows= mysql_num_rows($query);
if($numrows == 0 )
{
mysql_query("INSERT INTO wp_newslettter (`name`,`email`) VALUES ('$user','$email')")or exit(mysql_error());
}
else
$errmsg = "email address already exists";
}
else
$errmsg = "Please enter a valid email address";
}
else
$errmsg = "Please enter your username";
}
我现在想做的是，一旦数据被保存到数据库中，我想强制下载一个存储在我的主题中的pdf，我真的是wordpress的新手，无法访问文件路径，我已经完成了以下代码，但没有下载文件，请提供任何帮助，我将不胜感激，我的表单操作如下action='$_SERVER[REQUEST_URI]'
/**数据提交后下载pdf的代码*/
$a = bloginfo('template_url');
$file= $a . "/pdf/default.pdf";
$path_parts = pathinfo($file);
$ext = strtolower($path_parts["extension"]);
switch ($ext) {
case "pdf": $ctype="application/pdf"; break;
case "exe": $ctype="application/octet-stream"; break;
case "zip": $ctype="application/zip"; break;
case "doc":
case "docx": $ctype="application/msword"; break;
case "xls": $ctype="application/vnd.ms-excel"; break;
case "ppt": $ctype="application/vnd.ms-powerpoint"; break;
case "gif": $ctype="image/gif"; break;
case "png": $ctype="image/png"; break;
case "jpeg":
case "jpg": $ctype="image/jpg"; break;
default: $ctype="application/force-download";
}
header('Content-Description: File Transfer');
header('Content-Type: application/force-download');
header("Content-type: $ctype");
header('Content-Disposition: attachment; filename='.basename($file));
header('Content-Transfer-Encoding: binary');
header('Expires: 0');
header('Cache-Control: must-revalidate , post-check=0, pre-check=0');
header('Pragma: public');
header('Content-Length: ' . filesize($file));
ob_clean();
flush();
readfile($file);
exit;
我无法通过执行以下代码读取文件
如果文件在您的媒体库中，请尝试查看它并查看浏览器指向的URL。这是您在提交数据后需要使用header('Location: http://www.yoursite.com/wp-content/uploads/2013/02/22/file.pdf');将用户带到的URL。
函数DisplayFiles（）｛
$results = GetFiles(); // Function that gets files available for download
$row = mysql_fetch_assoc( $results ); // Get first row
echo " <select name='files'>'n";
while ( $row ) {
echo "<option value = '" . $row['EightDigitValue'] . "'>" .$row['FileName']. "</option>'n";
$row = mysql_fetch_assoc( $results );
}
echo " </select>'n";
}