[英]php isset($_post[]) and javascript form.submit
for some reason isset($_post) doesn't work when i use js form.submit() how i can resolve that without changing type of input from button to submit and just with using vanilla javascript because i need both of them.出于某种原因,当我使用 js form.submit() 时 isset($_post) 不起作用,我如何在不更改从按钮到提交的输入类型的情况下解决这个问题,并且只使用 vanilla javascript 因为我需要它们。
code html:代码 html:
<form name="user_verification" action="action.php" method="POST">
Name: <input type="text" name="name"><br>
E-mail: <input type="text" name="email"><br>
<input type="button" onclick="myFunction(this)" name="button" value="submit">
</form>
and here is the php script in action.php file这是 php 脚本在运行。php 文件
if($_SERVER['REQUEST_METHOD']=="POST")
{
if(isset($_POST['button']))
{
echo 'yes';
}else{
echo 'no';
}
}
and here is the javascript in action.js file这是 action.js 文件中的 javascript
function myFunction(button)
{
//some code
const form=button.parentNode;
form.submit();}
Actually the problem didn't raise from the PHP. Buttons' value is sent when the form is directly submitted by them (In this case, it seems impossible).其实这个问题不是从PHP开始的。按钮的值是在他们直接提交表单时发送的(在这种情况下,这似乎是不可能的)。
Suggestion 1: use another field to check form submission.建议1:使用另一个字段来检查表单提交。
if($_SERVER['REQUEST_METHOD'] == 'POST') {
if(isset($_POST['email'])) {
echo 'yes';
} else {
echo 'no';
}
}
Suggestion 2: add hidden input in the HTML.建议2:在HTML增加隐藏输入。
<form name="user_verification" action="test.php" method="POST">
Name: <input type="text" name="name"><br>
E-mail: <input type="text" name="email"><br>
<input type="hidden" name="button" value="submit">
<input type="button" onclick="myFunction(this)">
</form>
Suggestion 3: change button type to hidden before submitting.建议3:提交前将按钮类型改为隐藏。
function myFunction(button) {
// some code
button.setAttribute('type', 'hidden');
const form=button.parentNode;
form.submit();
button.setAttribute('type', 'button');
}
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