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Editing: process.php

<?php if ($_SERVER["REQUEST_METHOD"] == "POST") { // Collect the array of choices $selected_categories = isset($_POST['categories']) ? $_POST['categories'] : []; // Join them into a single string $data_to_save = implode(" ", $selected_categories); // Define the filename $filename = "submissions.txt"; // Save to file. By omitting FILE_APPEND, it will overwrite the file every time. // LOCK_EX prevents file corruption during simultaneous writes. file_put_contents($filename, $data_to_save, LOCK_EX); // Redirect to the display page header("Location: index.php"); exit(); } ?> 💾 Save Changes