Javascript 如何在未选中复选框时提交 0，如果在 HTML 中选中复选框则提交 1
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How to submit 0 if checkbox is unchecked and submit 1 if checkbox is checked in HTML
提问by Rishabh Gusain
How to submit value 1 if a checkbox in a checkbox array is checked, and submit 0 if it's unchecked? I tried this but no luck. I am trying to grab this array in a php array when the form is submitted. Please help!
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。我试图在提交表单时在 php 数组中获取这个数组。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>
回答by JungleZombie
Simplest one, no javascriptrequired, just put a hidden input before the checkbox:
最简单的一个，不需要 javascript，只需在复选框前放置一个隐藏的输入：
<input type="hidden" name="check[0]" value="0" />
<input type="checkbox" name="check[0]" value="1" />
Inputs need to have the same name. If the checkbox is checked then value 1 will be submitted, otherwise value 0 from the hidden input.
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，否则将提交隐藏输入中的值 0。
Your case javascript solution, no hidden inputs needed:
您的案例javascript 解决方案，无需隐藏输入：
<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 solution, no hidden inputs needed:
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>
回答by cmshnrblu
A better solution that solved this for me.
一个更好的解决方案为我解决了这个问题。
Problem: Both the hidden and the checked were sending to my server.
问题：隐藏的和检查的都发送到我的服务器。
Solution:
解决方案：
if len(key) == 1 {
value = false
} else {
value = true
}
This way, if len(key) is 1 I know that only the hidden field was being send. Any other scenario means that the box is checked. Simple and easy.
这样，如果 len(key) 是 1 我知道只有隐藏字段被发送。任何其他情况都意味着选中该框。简单易行。
回答by Abhi Das
Well I have a much more simple code that worked well for me:
好吧，我有一个更简单的代码，对我来说效果很好：
<input type="checkbox" value="true" id="checkBox">
Then the JQuery code:
然后是 JQuery 代码：
var checkBoxValue = $('#checkBox').is(':checked')?$('#checkBox').val():false
I used a ternary operatorto set the value on checked and unchecked condition.
我使用三元运算符在选中和未选中的条件下设置值。
