PHP检查/取消选中复选框值[重复]

Question

This question already has an answer here:

• Get checked and unchecked checkboxes value 3 answers

<?php

// $groups is fetch_array from mysql
foreach($groups as $group) {
    if ($group['delete_user'] === 'Y') {
        $checked = "checked=\"checked\";
    }
    else {
        $checked = '';
    }
?>
    <input type = "checkbox" name="delete_user[<?php echo $group['id']; ?>]" <?php echo $checked; ?>>
<?php

}
?>

Will output:

<form action="test.php" method="post">
    <input type="checkbox" name="delete_user[1]">
    <input type="checkbox" name="delete_user[2]">
    <input type="checkbox" name="delete_user[3]">
    <input type="checkbox" name="delete_user[4]" checked="checked">
    <input type="submit" name="save_action" value="Save">
</form>

And when I check inputs as wanted, then this will process input.

<?php
if(isset($_POST['save_action']) {
    if (empty($_POST['delete_user'])) {
        $_POST['delete_user'] = array();
    }
    foreach($_POST['delete_user'] as $del) {
        is_checked($del); //@todo 
    }
}
?>

I am looking for way to check if check-box is checked and return proper value ( Y or N ). In this point I declared is_checked() function for this purpose.

</div>

Answer 1

I would do it like this:

<form action="test.php" method="post">
    <input type="checkbox" name="delete_user[]" value="1">
    <input type="checkbox" name="delete_user[]" value="2">
    <input type="checkbox" name="delete_user[]" value="3">
    <input type="checkbox" name="delete_user[]" value="4" checked="checked">
    <input type="submit" name="save_action" value="Save">
</form>

Now in PHP you can loop over the $_POST['delete_user'] and it will contain the values of the selected items.

foreach($_POST['delete_user'] as $item)
{
   // code to delete $item
}