如何使用php编辑/更新txt文件 [英] How to edit/update a txt file with php
问题描述
在我阅读了文件上的edit/update函数的许多类似问题之后，它们都没有起作用，我想寻求帮助.
After I've read a lot of similar problems with the edit/update function on a file and none of it worked I would like to ask for some help.
我正在尝试从php编辑.txt文档.我已经尝试过这些事情:
I am trying to edit a .txt document from php. I have tried these things:
-
这是我在这里阅读的最后一个代码，但是没有用.
This was the last code which I've read here and didn't work.
$data_to_write = "$_POST[subject]";
$file_path = "text/" + $row['name'];
$file_handle = fopen($file_path, 'w');
fwrite($file_handle, $data_to_write);
fclose($file_handle);
这是我以前的尝试:
And this is my previous try:
$new_contents = "$_POST[subject]\n";
$path = "text/$row[name]";
file_put_contents($path, $new_contents);
我希望有人能向我解释如何正确执行此操作.谢谢.
I hope someone would explain me how to do this the right way. Thank you.
这是我的全部代码:
<?php
if(isset($_GET['id']))
{
$edit = mysql_query("SELECT * FROM text_area WHERE text_id=$_GET[id]");
$row = mysql_fetch_assoc($edit);
$contents = file_get_contents($row['content']);
?>
<form action="" name="form" method="post">
<input type="hidden" name="id" value="<?php echo $row['text_id']; ?>" /><br />
<label for="">Заглавие:</label><br />
<input type="text" name="title" style="width:500px;" value="<?php echo $row['subject'] ?>" /><br />
<select name="opt">
<option value="0"></option>
<?php
$result = mysql_query("SELECT * FROM image_area");
while ($row = mysql_fetch_array($result))
{
echo "<option value=" . $row['path'] . ">" . $row['name'] . "</option>
";
}
?>
</select><input type="button" name="sumbitP" value="Choose" onclick="addtext();" /><a href="../image_list.php" target="_blank">Image list</a><br />
<textarea rows="10" cols="50" name="text" id="markItUp"><?php echo $contents ?></textarea><br />
<input type="submit" name="sumbitT" value="Update" />
<input type="reset" value="Reset" />
</form>
<?php
}
?>
<?php
if(isset($_POST['id']))
{
if(mysql_query("UPDATE text_area SET title='$_POST[subject]' WHERE text_id ='$_POST[id]'"))
{
$data_to_write = "" . $_POST['text'];
$file_path = "text/$row[name]";
$file_handle = fopen($file_path, 'w');
fwrite($file_handle, $data_to_write);
fclose($file_handle);
echo '<br><br><p align="center">Everything is ok</p>';
} else {
echo '<br><br><p align="center">Everything is not ok</p>' ;
}
?>
只需添加可能有用的内容:
我遇到了这个错误，我无法通过Google找到答案.
Warning: fopen(text/) [function.fopen]: failed to open stream: Is a directory in
Just to add something which might be useful:
I am getting this error which I can't manage to find an answer for with Google.
Warning: fopen(text/) [function.fopen]: failed to open stream: Is a directory in
推荐答案
您只需更改:
$file_path = "text/" + $row['name'];
对此:
$file_path = "text/" . $row['name'];
PHP中的串联运算符为.(不是+)
The concatenation operator in PHP is . (not +)
并确保目录text存在，否则最好检查一下，然后编写:
And make sure the directory text exists, otherwise its better to check and then write :
$data_to_write = $_POST['subject'];
$file_path = "text/" . $row['name'];
if ( !file_exists("text") )
mkdir("text");
$file_handle = fopen($file_path, 'w');
fwrite($file_handle, $data_to_write);
fclose($file_handle);
这篇关于如何使用php编辑/更新txt文件的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！
