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急PHP中如何样判断checkbox是否被选中

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Release： 2016-06-13 10:03:56
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急！！PHP中怎么样判断checkbox是否被选中？
PHP中checkbox怎么样判断是否被选中？

------解决方案--------------------
取得的值不为空即为选中






------解决方案--------------------
check.html:


 


checkbox.php:

if($_POST)
{if($_POST['select']!=""){echo "不为空";}else{echo "为空";}}
?>
------解决方案--------------------
可以用JS先判断,如
if(form.checkname.checked) {}
如果多个,可以使用JS循环,把check的值组成字符串提交,或使用4楼的方法.
提交到php页再判断一次.:-)
------解决方案--------------------
PHP 没有办法判断。只能当表单提交后，进行取值再判断。 
可以通过客户端JS 来做判断。 
检测他 checked 是否为true
Related labels：
input quot select
source：php.cn
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