How can the values of selected checkboxes be passed to the next page in PHP without having to create multiple templates?

To pass the values of selected checkboxes to the next page in PHP without creating multiple templates, you can use the $_POST superglobal to retrieve the selected checkbox values and store them in a session variable. Then, on the next page, you can access the session variable to retrieve the selected values. 

<?php
session_start();

if ($_SERVER["REQUEST_METHOD"] == "POST") {
    $_SESSION['selected_checkboxes'] = $_POST['checkbox'];
    header("Location: next_page.php");
    exit;
}
?>

<form method="post" action="<?php echo $_SERVER['PHP_SELF']; ?>">
    <input type="checkbox" name="checkbox[]" value="value1"> Checkbox 1
    <input type="checkbox" name="checkbox[]" value="value2"> Checkbox 2
    <input type="checkbox" name="checkbox[]" value="value3"> Checkbox 3
    <input type="submit" value="Submit">
</form>

Keywords

checkboxes form submission PHP session variables data transfer

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