Question

<div class="control-group">
<label class="control-label">Notification Views</label>
<div class="controls">

    <label class="checkbox">
        <input type="checkbox" name="n_index[]" value="1" <?php if(isset($POST ['n_index'])){ echo "checked!";}?> class="a1" title="Choose"> Teachers
    </label>

    <label class="checkbox">
        <input type="checkbox" name="n_index[]" value="2" <?php if(isset($POST ['n_index'])){ echo "checked!";}?>  class="a1" title="Choose"> Parents

    </label>
    <br>
    <label class="checkbox">
        <input type="checkbox" name="n_index[]" value="3" <?php  if(isset($POST ['n_index'])){ echo "checked!";}?>  class="a1" title="Choose"> Management  

    </label>
    <label class="checkbox">
        <input type="checkbox" name="n_index[]" value="4" <?php  if(isset($POST ['n_index'])){ echo "checked!";}?>  class="a1" title="Choose"> Office 

    </label>
    <?php echo form_error('n_index'); ?>
</div>

它是代码，复选框没有获取值。表格提交正在进行，方法发布。请帮助一些。

Answer 1

用$ _POST替换$ POST。

实施例

<?php if(isset($_POST['n_index'])){ echo "checked!";}?>

Answer 2

试试这个

    <div class="control-group">
<label class="control-label">Notification Views</label>
<div class="controls">

    <label class="checkbox">
        <input type="checkbox" name="n_index[]" value="1" <?php if(isset($_POST ['n_index']) && in_array('1', $_POST ['n_index'])){ echo 'checked="checked"';}?> class="a1" title="Choose"> Teachers
    </label>

    <label class="checkbox">
        <input type="checkbox" name="n_index[]" value="2" <?php  if(isset($_POST ['n_index']) && in_array('2', $_POST ['n_index'])){ echo 'checked="checked"';}?>  class="a1" title="Choose"> Parents

    </label>
    <br>
    <label class="checkbox">
        <input type="checkbox" name="n_index[]" value="3" <?php   if(isset($_POST ['n_index']) && in_array('3', $_POST ['n_index'])){ echo 'checked="checked"';}?>  class="a1" title="Choose"> Management  

    </label>
    <label class="checkbox">
        <input type="checkbox" name="n_index[]" value="4" <?php   if(isset($_POST ['n_index']) && in_array('4', $_POST ['n_index'])){ echo 'checked="checked"';}?>  class="a1" title="Choose"> Office 

    </label>
    <?php echo form_error('n_index'); ?>
</div>

使用'if（isset（$ POST ['']））时，复选框值不反映

2 个答案: