JQUERY $.post to PHP page (Internal Server Error 500)

Question

I have a jquery code when I click in an input button launch an event to post updateEstado.php.

Code:

$('input[type="submit"]').click(function(event){
    event.preventDefault(); // disable action of the input buttons

    // Get the value of the input fields
   var inputvalue = $(this).attr("value");

    // Send Ajax request to updateEstado.php, with value set as 'input' in the POST data
    $.post('updateEstado2.php', {estado: 'DESACTIVAT', codigo: '38'});


    alert(inputvalue);          

});

PHP:

<?php   
        session_start();

        if(isset($_SESSION['username']) and $_SESSION['username'] <> ''){

                include("db_tools.php"); 

                $conn = dbConnect("localhost", "5432", "dbname", "dbuser", "dbpass");  


                $estado = $_POST['estado'];

                $codigo = $_POST['codigo'];

                echo "<br>Estado: " + $estado;
                echo "<br>Codigo: " + $codigo;

        /*      
                $query = "UPDATE produccion.ma_producto SET estado={$estado} WHERE codigo={$codigo}"; 

                $result = pg_query($conn, $query);  

                if ($result == TRUE) {
                    header('Location: produccio.php');
                } else {
                    echo "Error updating record: " . $conn->error;
                }   */

                $conn->close();

        } else{
            ?><p>La sessió no està activa, si us plau ingresa <a href="login.php">aquí</a></p>
<?php   
        }?>

This code working fine because I show the alert message only when I clic in a button doesn't launch to post updateEstado.php in the debug console of the browser show this error message:

I have tried a php page with only echo "test"; but it doesn't work too, it show the same error message.

Please Could you help me?

The first thing you should to is to check your error logs to find the actual error message. — M. Eriksson, Oct 21 '16 at 12:12
The error is in the PHP code `updateEstado2.php` So show us that code — RiggsFolly, Oct 21 '16 at 12:13
Here's a SO post on how to turn on error reporting/debugging your code: http://stackoverflow.com/questions/845021/how-to-get-useful-error-messages-in-php — M. Eriksson, Oct 21 '16 at 12:14
@MagnusEriksson 500 errors are normaly so serious, you dont get much from error reporting — RiggsFolly, Oct 21 '16 at 12:16
run php file from link withen browser and see the output. So when your php file run without an error then try ajax — Aammad Ullah, Oct 21 '16 at 12:23
I update the code with the updateEstado.php but I do not think that the problem because I tried with other blank php file and it's the same error. — ruzD, Oct 21 '16 at 13:07
Thanks everyone, I have seen the error in the logfile and it's solved! The problem was a function :( — ruzD, Oct 21 '16 at 13:18

score 1 · Answer 1 · answered Oct 21 '16 at 13:30

1

In your php use

echo "<br>Estado: " . $estado;
echo "<br>Codigo: " . $codigo;

Not

echo "<br>Estado: " + $estado;
echo "<br>Codigo: " + $codigo;

And $_SESSION['username'] != ''

answered Oct 21 '16 at 13:30

G. Mansour

696
6
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JQUERY $.post to PHP page (Internal Server Error 500)

1 Answers1