问题
I have executed a php script through GET request ex:
http://localhost/example.php?id=9&name=exammple
Now the example.php has a form field
<form method="post" action="example.php">
---form fields used to post data on server---
</form>
Now on submitting the form, it throws up an error saying undefined indexes.
How do I submit a form in a page which was accessed using GET request? I am a PHP beginner.
回答1:
Use <form method="post" action="">
Then it will post the data to the same page (with the GET parameters) and you can get them using $_GET and the parameters from the form using $_POST or all with $_REQUEST.
回答2:
Add a
$_POST += $_GET;
before you access the $_POST variables or use anther request variable like $_REQUESTDocs if you want to allow others next to $_GET, too (namely $_COOKIES with PHP's default configuration).
A little explanation:
$_GET- contains all get variables.$_POST- contains all post variables.
The
$_POST += $_GET;
will put all get variables into $_POST if they have not been send as post variable by creating a union of $_POST and $_GET.
来源：https://stackoverflow.com/questions/7736846/how-to-pick-up-form-details-using-post-request-from-a-php-page-which-was-accesse