pass the id of an input to another page

Question

I have a form that we inputs has the field id and when sending the form I wanted to recover these values in my code.

<form  action="edit.php" method="post"]>
    <label class="" >
     <span class="legend">Requisito 1 :</span>
     <input type="text" name="req1" id="1"value="teste 1" style="margin-bottom: 10px;"></label>

     <label class="" >
     <span class="legend">Requisito 2 :</span>
     <input type="text" name="req2" id="2"value="teste 2" style="margin-bottom: 10px;"></label>
</form>

So when I press send, on the page Edit.php, recover the value of each input in that way

$req1 = $_POST['req1'];
$req2 = $_POST['req2'];

So how do I recover the value id of each input and send to the page edit.php

Answer 1

As commented, the function of the property id is to identify only one element in DOM, in HTML. If you need this value in PHP, you should not use this attribute. First, because it doesn’t make sense. Second, because this information is not passed through the HTTP protocol for PHP. The correct way is to store the desired value in a form field of type hidden if you do not want it to appear on the page.

<form action="edit.php" method="post">
    <label class="" >
        <span class="legend">Requisito 1 :</span>
        <input type="text" name="req1" value="teste 1" style="margin-bottom: 10px;">
        <input type="hidden" name="req1_id" value="1">
    </label>

    <label class="" >
        <span class="legend">Requisito 2 :</span>
        <input type="text" name="req2" value="teste 2" style="margin-bottom: 10px;">
        <input type="hidden" name="req2_id" value="2">
    </label>
</form>

With PHP, you can recover the data with:

$req1 = $_POST['req1'];
$req1_id = $_POST['req1_id'];

$req2 = $_POST['req2'];
$req2_id = $_POST['req2_id'];

Answer 2

The value name and id are the same. Within the Edit.php page do the following

<?php 

$req1 = isset($_POST["req1"])?$_POST["req1"]:"";
$req2 = isset($_POST["req2"])?$_POST["req2"]:"";

echo $req1 ." ". $req2;

Teste ai.

?>