Simple PHP editor of text files

问题:

I have developed a site for a client and he wants to be able to edit a small part of the main page in a backend type of solution. So as a solution, I want to add a very basic editor (domain.com/backend/editor.php) that when you visit it, it will have a textfield with the code and a save button. The code that it will edit will be set to a TXT file.

I would presume that such thing would be easy to code in PHP but google didn't assist me this time so I am hoping that there might be someone here that would point me to the right direction. Note that I have no experience in PHP programming, only HTML and basic javascript so please be thorough in any reply that you provide.

回答1:

You create a HTML form to edit the textfile's content. In case it get's submitted, you update the textfile (and redirect to the form again to prevent F5/Refresh warnings):

<?php

// configuration
$url = 'http://domain.com/backend/editor.php';
$file = '/path/to/txt/file';

// check if form has been submitted
if (isset($_POST['text']))
{
    // save the text contents
    file_put_contents($file, $_POST['text']);

    // redirect to form again
    header(sprintf('Location: %s', $url));
    printf('<a href="%s">Moved</a>.', htmlspecialchars($url));
    exit();
}

// read the textfile
$text = file_get_contents($file);

?>
<!-- HTML form -->
<form action="" method="post">
<textarea name="text"><?php echo htmlspecialchars($text) ?></textarea>
<input type="submit" />
<input type="reset" />
</form>

回答2:

To read the file:

<?php
    $file = "pages/file.txt";
    if(isset($_POST))
    {
        $postedHTML = $_POST['html']; // You want to make this more secure!
        file_put_contents($file, $postedHTML);
    }
?>
<form action="" method="post">
    <?php
    $content = file_get_contents($file);
    echo "<textarea name='html'>" . htmlspecialchars($content) . "</textarea>";
    ?>
    <input type="submit" value="Edit page" />
</form>

回答3:

You're basically looking for a similar concept to that of a contact-form or alike.

Apply the same principles from a tutorial like this one and instead of emailing using mail check out the file functions from PHP.net.

回答4:

What did you Google on then? php write file gives me a few million hits.

As in the manual for fwrite():

<?php
$fp = fopen('data.txt', 'w');
fwrite($fp, '1');
fwrite($fp, '23');
fclose($fp);

// the content of 'data.txt' is now 123 and not 23!
?>

But to be honest, you should first pick up a PHP book and start trying. You have posted no single requirement, other than that you want to post a textfield (textarea I mean?) to a TXT file. This will do:

<?php
if ($_SERVER['REQUEST_METHOD'] == "POST")
{
    $handle = fopen("home.txt", 'w') or die("Can't open file for writing.");
    fwrite($fh, $_POST['textfield']);
    fclose($fh);
    echo "Content saved.";
}
else
{
    // Print the form
    ?>
    <form method="post">
        <textarea name="textfield"></textarea>
        <input type="submit" />
    </form>
    <?php
}

Note that this exactly matches your description. It doesn't read the file when printing the form (so every time you want to edit the text, you have to start from scratch), it does not check the input for anything (do you want the user to be able to post HTML?), it has no security check (everyone can access it and alter the file), and in no way it reads the file for display on the page you want.

回答5:

First thing to do is capture the information, the simplest way to do this would be the use of a HTML Form with a TEXTAREA:

<form method='post' action='save.php'>
  <textarea name='myTextArea'></textarea>
  <button type='submit'>Go</button>
</form>

On 'save.php' (or wherever) you can easily see the information sent from the form:

<?php
  echo $_POST['myTextArea']
?>

To actually create a file, take a look at the fopen/fwrite commands in PHP, another simplistic example:

<?php 
  $handle = fopen("myFile.txt","w");
  fwrite($handle,$_POST['myTextArea'];
  fclose($handle);
?>

WARNING: This is an extremely simplistic answer! You will perhaps want to protect your form and your file, or do some different things.... All the above will do is write EXACTLY what was posted in the form to a file. If you want to specify different filenames, overwrite, append, check for bad content/spam etc then you'll need to do more work.

If you have an editor that is publicly accessible and publishes content to a web page then spam protection is a DEFINITE requirement or you will come to regret it!

If you aren't interested in learning PHP then you should think about getting a professional developer to take care of any coding work for you!

回答6:

I had a similar need so we created a client-friendly solution called stringmanager.com we use on all our projects and places where CMS is not effective.

From your side, you just need to tag string in the code, i.e. from:

echo "Text he wants to edit"; to:

echo _t("S_Texthewantstoedit");

stringmanager.com takes care about the rest. Your client can manage that particular text area in our online application and sync wherever he wants. Almost forgot to mention, it is completely free.

回答7:

<?php
$file = "127.0.0.1/test.html";
$test = file_get_contents('1.jpg', 'a');
if (isset($_POST['test'])) {
file_put_contents($file, $_POST["test"]);
};
?>
<form action="" method="post">
<textarea id="test" name="test" style="width:100%; height:50%;"><? echo "$test"; ?></textarea>
<input type="submit" value="submit">
</form>

Haven't had time to finish it, simplest possible, will add more if wanted.