$_GET does not receive more than one variable

Question

There is the following link.

<a style='color: bfbfbf; text-decoration: none;' href='autorizar.php?id=<?php echo $curso[0]['idCurso'].'&resp=s' ?>'>Sim</a>

If yes was clicked the variable Resp = ’s', if no is clicked, Resp = 'n'

Page authorize

<?php include '../AB/ab.php'; 

    $id = $_GET['id'];
    $resp = $_GET['resp'];

    function autorizar($conexao, $id)
    {
        if($resp == 's')
        {
            $sqlAtrib = "UPDATE cursos SET exibirCurso='s' WHERE idCurso = $id";
            mysqli_query($conexao, $sqlAtrib);
            header("Location: curso2.php?curso=$id");
        }
        else
        {
            echo 'entrou no else';
        }
    }

        autorizar($conexao, $id);   
?>

However only $_GET['id'] is working. And the error returned is that it was not possible to find the Resp variable.

Notice: Undefined variable: Resp in C: Program Files (x86) Easyphp-Devserver-16.1 eds-www Accipiter Commercial authorize.php on line 8

I believe it’s a mistake mine easy to resolve, but I’m not getting it right.

Answer 1

The problem is not that $_GET does not receive the value, but in its function:

function autorizar($conexao, $id)
    {
        if($resp == 's')
        {
            $sqlAtrib = "UPDATE cursos SET exibirCurso='s' WHERE idCurso = $id";
            mysqli_query($conexao, $sqlAtrib);
            header("Location: curso2.php?curso=$id");
        }
        else
        {
            echo 'entrou no else';
        }
    }

You are not declaring $resp nowhere, so will generate the message

Undefined variable: SP

What you need to do is change the function statement by adding the variable:

function autorizar($conexao, $id, $resp)

And in your call pass the new parameter:

autorizar($conexao, $id,$resp); 

Or, as you are creating the function in the same PHP that has the variable resp, you can use the directive global:

function autorizar($conexao, $id){
    global $resp;
    ....
}