How can hidden fields or sessions be used to maintain menu status in PHP forms?

To maintain menu status in PHP forms, hidden fields or sessions can be used to store the current menu status. When a menu item is selected, the status is updated in the hidden field or session variable. This allows the menu to retain its selected state even after form submissions or page reloads. 

<?php
session_start();

// Check if menu item is selected
if(isset($_POST['menu_item'])){
    $_SESSION['menu_status'] = $_POST['menu_item'];
}

// Display menu with selected status
$menu_items = array('Home', 'About', 'Services', 'Contact');
echo '<form method="post">';
foreach($menu_items as $item){
    $selected = ($item == $_SESSION['menu_status']) ? 'selected' : '';
    echo '<input type="submit" name="menu_item" value="' . $item . '" ' . $selected . '>';
}
echo '</form>';
?>

Keywords

hidden fields sessions menu status PHP forms maintain

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