使用 $_POST 发送单选框值
即使字段为空，如何将单选或复选框值发送到 $_POST 数组?
How can I send a radio or checkbox value to the $_POST array even when the field is empty?
<?php
if(isset($_POST)) {
echo '<pre>';
print_r($_POST);
echo '</pre>';
}
?>
<form action="test.php" method="POST">
<input type="text" name="name">
<input type="text" name="email">
<input type="radio" name="gender">
<input type="submit">
</form>
如果我在没有填写数据的情况下点击提交，这就是我从页面中得到的结果.
Here is what I get from the page if I hit submit without even filling out data.
Array
(
[name] =>
[email] =>
)
如您所见，在不触及输入类型文本的情况下，它们的值被推送到 $_POST 数组.如何使用单选框做到这一点?我基本上想设置"它，虽然它和文本输入一样是空白的.
As you see, without touching the input type text, their value was pushed to the $_POST array. How can I do this with the radio box? I essentially want to "set" it, although it is blank just like the text inputs.
我知道我总是可以打电话
I know I could always call
<?php
if(isset($_POST['gender'])) {
//Code
}
?>
但这不一定是我想要的.我需要它自动设置.提前致谢！
But that's not necessarily what I'm looking for. I need it to set automatically. Thanks in advance!
推荐答案
试试这个就行了:
Unchecked radio 元素不会被提交，因为它们不被视为成功.所以你必须检查它们是否使用 isset 或 empty 函数发送.
Unchecked radio elements are not submitted as they are not considered as successful. So you have to check if they are sent using the isset or empty function.
<?php
if(isset($_POST)) {
echo '<pre>';
print_r($_POST);
echo '</pre>';
}
?>
<form action="test.php" method="POST">
<input type="text" name="name">
<input type="text" name="email">
<input type="radio" name="Gender" value="1"/>Male
<input type="submit" name="submit" value="submit"/>
</form>
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