How can values of checkboxes be effectively passed from one page to another in PHP?

To pass values of checkboxes from one page to another in PHP, you can use the $_POST or $_GET superglobals to retrieve the selected checkbox values and then pass them as parameters in the URL or store them in a session variable. This allows you to maintain the selected checkbox values when navigating between pages. 

// Page 1: form with checkboxes
<form action="page2.php" method="post">
    <input type="checkbox" name="checkbox[]" value="value1"> Checkbox 1
    <input type="checkbox" name="checkbox[]" value="value2"> Checkbox 2
    <input type="submit" value="Submit">
</form>

// Page 2: retrieve and display checkbox values
<?php
session_start();

if(isset($_POST['checkbox'])){
    $_SESSION['checkbox_values'] = $_POST['checkbox'];
}

if(isset($_SESSION['checkbox_values'])){
    foreach($_SESSION['checkbox_values'] as $value){
        echo $value . "<br>";
    }
}
?>

Keywords

PHP checkboxes form submission $_POST data transfer

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