How can PHP be used to read the contents of a text file and display them in a form for editing?

To read the contents of a text file in PHP and display them in a form for editing, you can use the file_get_contents() function to read the file contents, and then output them within a textarea element in an HTML form. You can also use the file_put_contents() function to save the edited contents back to the file. 

<?php
$file = 'example.txt';

if(isset($_POST['submit'])) {
    $new_content = $_POST['content'];
    file_put_contents($file, $new_content);
}

$content = file_get_contents($file);
?>

<form method="post">
    <textarea name="content" rows="10" cols="50"><?php echo $content; ?></textarea><br>
    <input type="submit" name="submit" value="Save">
</form>

Keywords

PHP file handling file_get_contents form editing text file.

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