PHP Read input from user

Question

I try open url from user input value but its no value

<form>
<p>*number:</p>

  <input type="text" name="numberpage" value=""/>

</form>
<a  href="./page.php?page=editdatapo&id=<?php echo $_POST['numberpage']; ?>">find</a>

here result that should be

user input = 13

output url

localhost/page.php?page=editdatapo&id=13

but output like this

localhost/page.php?page=editdatapo&id=

Add method="post" in <form> tag and add a submit button to post form — Death-is-the-real-truth
– Death-is-the-real-truth, Commented Apr 6, 2021 at 5:43
or you can use jquery to change link id value on user input event as well — Death-is-the-real-truth
– Death-is-the-real-truth, Commented Apr 6, 2021 at 5:45

jpneey · Accepted Answer · 2021-04-06 21:21:44Z

5

<form action="./page.php" method="GET">
   <p>*number:</p>
   <input type="hidden" name="page" value="editdatapo" />
   <input required type="text" name="id"/>
   <input type="submit" value="Find" />
</form>

Try using GET. After hitting submit, it will redirect to:

page.php?page=editdatapo&id=USER_INPUT

This way, you dont have to use $_POST just to access the link. You can just type the id then hit Enter/Find directly.

By default, forms without the method attribute uses GET and you can omit it if you really want to.

edited Apr 6, 2021 at 21:21

answered Apr 6, 2021 at 5:46

jpneey

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3 Comments

Death-is-the-real-truth Over a year ago

By default form method is always get so no need to write it

jpneey Over a year ago

Thanks @ServingQuarantineperiod. I just wanted to emphasize that the form will be using GET. It is better markup on my opinion too. Updated my answer.

Death-is-the-real-truth Over a year ago

Your approach is totally fine, but it will work perfectly without writing it, because it's by-default

Darshit Dhameliya · Accepted Answer · 2021-04-06 05:54:51Z

3

Here is a working code without page refresh:

<form>
   <p>*number:</p>
  <input type="text" id="numberpage" value=""/>
</form>
<a href="#" id="findAnchor" onclick="handleAnchorClick()">find</a>

<script>
    function handleAnchorClick(){
        const inputVal = document.getElementById('numberpage').value;
        alert(`./page.php?page=editdatapo&id=${inputVal}`);
        window.location.href = `./page.php?page=editdatapo&id=${inputVal}`;
    }
</script>

answered Apr 6, 2021 at 5:54

Darshit Dhameliya

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