How to clear html form via php?
I want to clear my form with the help of PHP after submitting the form and updating 开发者_如何学Cthe record.
I would recommend you to redirect the user after submit a form. this will clear all POST or GET data.
header('Location: foobar.php');
or you can unset the values after a successful submit.
unset($_POST['fieldname'], $_POST['fieldname2']);
Just unset the variables that you use to populate your form.
a html form is client side... and PHP runs server side, essentially you are going to have to reset the values of the form using a client side code, on the onsubmit action. The simplest way to do this would be to use javascript to clear the values of all the inputs.
You can unset POST/GET
variables and avoid data resend if the page is reloaded:
PHP code: (avoidResend.php):
if(!empty($_POST) OR !empty($_FILES))
{
$_SESSION['save'] = $_POST ;
$_SESSION['saveFILES'] = $_FILES ;
$currentFile = $_SERVER['PHP_SELF'] ;
if(!empty($_SERVER['QUERY_STRING']))
{
$currentFile .= '?' . $_SERVER['QUERY_STRING'] ;
}
header('Location: ' . $currentFile);
exit;
}
if(isset($_SESSION['save']))
{
$_POST = $_SESSION['save'] ;
$_FILES = $_SESSION['saveFILES'] ;
unset($_SESSION['save'], $_SESSION['saveFILES']);
}
include this file at the very top of your page, and after submitting the form then unset($_POST['v1'], $_POST['v2'], $_POST['v3']);
Cheers!
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