$options = array(
    'option1' => '选项1',
    'option2' => '选项2',
    'option3' => '选项3'
);

<form action="process.php" method="post">
    <?php foreach ($options as $value => $label): ?>
        <input type="checkbox" name="selected_options[]" value="<?php echo $value; ?>">
        <?php echo $label; ?><br>
    <?php endforeach; ?>
    <input type="submit" value="提交">
</form>

$selectedOptions = $_POST['selected_options'];