php - 如何命名二维复选框？

Question

这个页面有一个星期列表，用户可以查看不同星期的不同日期

<input type="checkbox" name="week[]" value="Sun"/>
Sun
<input type="checkbox" name="week[]" value="Mon"/>
Mon
<input type="checkbox" name="week[]" value="Tue"/>
Tue
<input type="checkbox" name="week[]" value="Wed"/>
Wed
<input type="checkbox" name="week[]" value="Thu"/>
Thu
<input type="checkbox" name="week[]" value="Fri"/>
Fri
<input type="checkbox" name="week[]" value="Sat"/>
Sat
<br/>
<br/>


<input type="checkbox" name="week[]" value="Sun"/>
Sun
<input type="checkbox" name="week[]" value="Mon"/>
Mon
<input type="checkbox" name="week[]" value="Tue"/>
Tue
<input type="checkbox" name="week[]" value="Wed"/>
Wed
<input type="checkbox" name="week[]" value="Thu"/>
Thu
<input type="checkbox" name="week[]" value="Fri"/>
Fri
<input type="checkbox" name="week[]" value="Sat"/>
Sat
<br/>
<br/>
.
.
.
<!-- can dynamically add more by javascript -->

但是提交后，所有的天都会组合成一个一维数组

所以我将 week[] 更改为 week[][]

但它仍然将所有值组合在一个一维数组中，并且这个数组的每个元素都是一个数组

如何提交二维复选框？

我希望我可以使用它来遍历所有周和天，我不想将序列号硬编码为周。

            foreach ($week as $oneWeek)
            {
                echo 'week<br>';
                foreach ($oneWeek as $day)
                {
                    echo $day.'<br>';
                }
            }

Answer 1

我建议你这样分组:

if(isset($_POST['submit'])) {
    $weeks = $_POST['week'];
    // in this way, you could identify the week for each day you checked
}


?>

<form method="POST">
    <label><input type="checkbox" name="week[1][]" value="Sun"/>Sun</label>
    <label><input type="checkbox" name="week[1][]" value="Mon"/>Mon</label>
    <label><input type="checkbox" name="week[1][]" value="Tue"/>Tue</label>
    <label><input type="checkbox" name="week[1][]" value="Wed"/>Wed</label>
    <label><input type="checkbox" name="week[1][]" value="Thu"/>Thu</label>
    <label><input type="checkbox" name="week[1][]" value="Fri"/>Fri</label>
    <label><input type="checkbox" name="week[1][]" value="Sat"/>Sat</label>

    <br/><br/>

    <label><input type="checkbox" name="week[2][]" value="Sun"/>Sun</label>
    <label><input type="checkbox" name="week[2][]" value="Mon"/>Mon</label>
    <label><input type="checkbox" name="week[2][]" value="Tue"/>Tue</label>
    <label><input type="checkbox" name="week[2][]" value="Wed"/>Wed</label>
    <label><input type="checkbox" name="week[2][]" value="Thu"/>Thu</label>
    <label><input type="checkbox" name="week[2][]" value="Fri"/>Fri</label>
    <label><input type="checkbox" name="week[2][]" value="Sat"/>Sat</label>

    <br/>

    <input type="submit" name="submit" />
</form>

或者这个:

$days = array('Sun', 'Mon', 'Tue', 'Wed', 'Thu', 'Fri', 'Sat');
?>

<form method="POST">
    <?php for($i = 1; $i <= 3; $i++): ?> <!-- print week 1 to week 3 -->
        <?php foreach($days as $day): ?>
            <label><input type="checkbox" name="week[<?php echo $i; ?>][]" value="<?php echo $day; ?>"/><?php echo $day; ?></label>
        <?php endforeach; ?>
        <br/><br/>
    <?php endfor; ?>

    <br/>

    <input type="submit" name="submit" />
</form>