如果未选中复选框,则如何提交0;如果在HTML中选中复选框,则提交1

Question

如果选中复选框数组中的复选框,如何提交值1,如果未选中则提交0？我试过这个,但没有运气.我正在尝试在提交表单时在php数组中获取此数组.请帮忙!

<input id = 'testName0' type = 'checkbox' name = 'check[0]' value = '1' checked>
<input id='testNameHidden0'  type='hidden' value='0' name='check[0]'>

<input id = 'testName1' type = 'checkbox' name='check[1]' value = '1' unchekced>
<input id='testNameHidden1'  type='hidden' value='0' name='check[1]'>

<input type = 'submit' value = 'Save Changes'>
>
<script>
if(document.getElementById('testName0').checked){
  document.getElementById('testNameHidden0').disabled = true;
}
</script>

<script>
if(document.getElementById('testName1').checked){
  document.getElementById('testNameHidden1').disabled = true;
}
</script>

Answer 1

最简单的一个,不需要javascript,只需在复选框之前输入一个隐藏的输入:

<input type="hidden" name="check[0]" value="0" />
<input type="checkbox" name="check[0]" value="1" />

输入需要具有相同的名称.如果选中该复选框,则将提交值1,否则从隐藏输入中返回值0.

你的案例javascript解决方案,不需要隐藏的输入:

<script type="text/javascript">
    // when page is ready
    $(document).ready(function() {
         // on form submit
        $("#form").on('submit', function() {
            // to each unchecked checkbox
            $(this + 'input[type=checkbox]:not(:checked)').each(function () {
                // set value 0 and check it
                $(this).attr('checked', true).val(0);
            });
        })
    })
</script>

<form method="post" id="form">
    <input type="checkbox" name="check[0]" value="1" />
    <input type="checkbox" name="check[1]" value="1" />
    <input type="submit" value="Save Changes" />
</form>

PHP解决方案,无需隐藏输入:

<?php
    // if data is posted, set value to 1, else to 0
    $check_0 = isset($_POST['check'][0]) ? 1 : 0;
    $check_1 = isset($_POST['check'][1]) ? 1 : 0;
?>

<form method="post">
    <input type="checkbox" name="check[0]" value="1" />
    <input type="checkbox" name="check[1]" value="1" />
    <input type="submit" value="Save Changes" />
</form>