我正在进行一个项目,该项目的要求是在wordpress网站上以.txt文件的形式下载文本区域内容。
在搜索了之前的问题后,我得到了下面的代码,标记为正确答案。
<html>
<body>
<form action="#" method="post">
<textarea name="text" rows="20" cols="100"></textarea>
<input type="submit" value="submit">Download Text</input>
</form>
<?PHP
if(isset($_POST['submit']))
{
$text = $_POST['text'];
print ($text);
$filename = 'test.txt';
$string = $text;
$fp = fopen($filename, "w");
fwrite($fp, $string);
fclose($fp);
header('Content-disposition: attachment; filename=test.txt');
header('Content-type: application/txt');
readfile('test.txt');
}
?>
</body>
</html>
但对我来说,这并不是在创建一个.txt文件。请帮助我识别问题
在代码中修改了一点。
首先把你的php代码
<?php
if(isset($_POST['submit']))
{
$text = $_POST['text'];
print ($text);
$filename = 'test.txt';
$string = $text;
$fp = fopen($filename, "w");
fwrite($fp, $string);
fclose($fp);
header('Content-disposition: attachment; filename=test.txt');
header('Content-type: application/txt');
readfile('test.txt');
die; //modified code
}
?>
之后把你的html代码
<html>
<body>
<form action="#" method="post">
<textarea name="text" rows="20" cols="100"></textarea>
<input type="submit" value="submit" name="submit">Download Text</input>
</form>
在提交按钮中添加name属性。
您的代码实际上在服务器上创建了一个文件,之后不会被删除。如果代码失败,则可能是您没有在服务器上写入的权限。您可以将代码缩减为以下内容,这样在过程中就不会生成任何文件:
<?php
if(isset($_POST['text']))
{
header('Content-disposition: attachment; filename=test.txt');
header('Content-type: application/txt');
echo $_POST['text'];
exit; //stop writing
}
?>
<html>
<body>
<form action="" method="post">
<textarea name="text" rows="20" cols="100"></textarea>
<input type="submit" value="submit" name="submit">Download Text</input>
</form>
</body>
</html>
首先,您应该在屏幕上打印任何内容之前输出文件,其次,您忘记将name="submit"
添加到原始代码中。我没有在这里使用它,但我把它包括在内,让你有一个想法。
在WordPress上下文中:将其添加到您的
functions.php
或插件文件中:
function feed_text_download(){
if(isset($_POST['text_to_download']))
{
header('Content-disposition: attachment; filename=test.txt');
header('Content-type: application/txt');
echo $_POST['text_to_download'];
exit; //stop writing
}
}
add_action('after_setup_theme', 'feed_text_download');
将表单添加到您的一个模板文件或您的帖子的HTML编辑器中:
<form action="" method="post">
<textarea name="text_to_download" rows="20" cols="100"></textarea>
<input type="submit" value="submit" name="submit">Download Text</input>
</form>
应该很好:)
EDIT:添加文件名
HTML:
<form action="" method="post">
<label>Filename:<input type="text" name="filename" /></label>
<label>Text:<textarea cols="100" name="text_to_download" rows="20"></textarea></label>
<input type="submit" name="submit" value="Download Text" />
</form>
PHP:
function feed_text_download() {
if ( isset( $_POST['text_to_download'] ) && isset( $_POST['filename'] ) ) {
$filename = sanitize_file_name( $_POST['filename'] );
header( 'Content-disposition: attachment; filename=' . $filename );
header( 'Content-type: application/txt' );
echo $_POST['text_to_download'];
exit; //stop writing
}
}
add_action( 'after_setup_theme', 'feed_text_download' );
尝试以下代码,这将对您有所帮助:
<?php ob_start();?>
<html>
<body>
<?php
if(isset($_POST['tarea'])){
$filename = 'test.txt';
$data = $_POST['tarea'];
header("Cache-Control: public");
header("Content-Description: File Transfer");
header("Content-Disposition: attachment; filename=$filename");
header("Content-Type: application/octet-stream; ");
header("Content-Transfer-Encoding: binary");
echo $data;
exit;
}
?>
<form action="" method="post">
<textarea name="tarea"></textarea>
<input type="submit">
</form>
</body>
</html>