PHP error undefined index

Question

I am coding a dynamic chained select and it's working, however when I try to get the selected values I get this error:

Notice: Undefined index: ciudad in C:\Users\Syscom\Documents\PEDRO\Dropbox\xampp\htdocs\Syscom\_\logueado.php on line 11

Notice: Undefined index: departamento in C:\Users\Syscom\Documents\PEDRO\Dropbox\xampp\htdocs\Syscom\_\logueado.php on line 13
Pais escogido .Departamento escogido .Ciudad escogido .

Here is my code:

    <?php
require_once ('funciones.php');
include 'includes/iniciosinbanner.php';

session_start();
if ($_SESSION['logged'] == 'yes')//
{

    if (isset($_POST['bciudad'])){

        $ciudad=$_POST['ciudad'];
        $pais=$_POST['pais'];
        $departamento=$_POST['departamento'];
        echo 'Pais escogido '.$pais.'.'; 
        echo 'Departamento escogido '.$departamento.'.'; 
        echo 'Ciudad escogido '.$ciudad.'.'; 
    }


    else{

        echo 'Bienvenido '.$_SESSION['nombreusuario'].'.'; 

    $con=fullconectar();
    $res=mysql_query("select * from paises",$con);
    ?>

    <br><br>

    <table border="1" width=800 align="center">
    <tr >
        <td  width="30%">
        <form name "buscar" action="<?php echo $_SERVER['PHP_SELF']; ?> " method="post">
    <font color="#27A7D6">Buscar por País:<br></font>
    <select id="pais" onchange="this.form.submit();" name="pais" style="width:150px">    
       <option value="">Seleccione</option>
       <?php
       while($fila=mysql_fetch_array($res)){
        ?>
        <option value="<?php echo $fila['nombrepaises']; ?>"><?php echo $fila['nombrepaises']; ?></option>
        <?php } ?>
   </select>

    <input type="submit" name="bpais" value ="Buscar">
    <br><br>

<!-- INICIO DEL SELECT DEPARTAMENTO-->
    <?php
if(isset($_POST['pais'])){ // REVISAR SI HAY VALOR ESCOGIDO EN PAIS
$pais=$_POST['pais']; 
$con=fullconectar();
$res=mysql_query("select distinct departamento from sitios where pais='".$pais."'",$con);
?>
<font color="#27A7D6">Buscar por Departamento/Región:<br></font>
<select id="departamento" name "departamento" style="width:150px">
<?php while($fila=mysql_fetch_array($res)){ ?>
<option><?php echo $fila['departamento']; ?></option>
<?php } ?>
</select>
<input type="submit" name="bdepartamento" value ="Buscar">
<?php } ?>
<br><br>

 <!-- INICIO DEL SELECT CIUDAD-->
<?php
if(isset($_POST['pais'])){ // REVISAR SI HAY VALOR ESCOGIDO EN PAIS
$pais=$_POST['pais']; 
$con=fullconectar();
$res2=mysql_query("select distinct ciudad from sitios where pais='".$pais."'",$con);
?>
<font color="#27A7D6">Buscar por Ciudad/Municipio:<br></font>
<select id="ciudad" name "ciudad" style="width:150px">
     <option value="">Seleccione</option>
<?php while($fila=mysql_fetch_array($res2)){ ?>
<option value="<?php echo $fila['ciudad']; ?>"><?php echo $fila['ciudad']; ?></option>
<?php } ?>
</select>
<input type="submit" name="bciudad" value ="Buscar">
<?php } ?>
<br><br>





       <div id="myDiv"></div><!--div donde aparecen los departamentos-->    



    <font color="#27A7D6">Buscar por Longitud y Latitud:<br></font>
    Longitud:<input type="text" name="long" size="21"><br>
    Latitud:&nbsp&nbsp&nbsp<input type="text" name="lat" size="21"><br>
    Radio:&nbsp&nbsp&nbsp&nbsp&nbsp<input type="text" name="radio" size="4">Metros. 
    <input type="submit" name="latitud" value ="Buscar"><br><br>

    <font color="#27A7D6">Buscar por Palabra clave:<br></font>
    <input type="text" name="pclave" size="19">
    <input type="submit" name="palabra" value ="Buscar"><br><br>
    </td>





        <td  width="70%" align="center" valign="top">Resultados:</td>
    </tr>
    </table>


<?php
    }
}
else
{
    echo 'No haz iniciado sesión, por favor inicia sesión aquí.';
}

include 'includes/final.php';
?>

There's no need to check the post data - those indexes aren't there - PHP tells OP that. The problem is clear if you check the HTML carefully. — Popnoodles, Dec 27 '13 at 18:24

Popnoodles · Accepted Answer · 2013-12-27T17:35:15.497

Undefined index error means that the element you're trying to access, of an array, doesn't exist. The errors are on lines 11 and 13, so it is most likely the $_POST array from the code you've given.

They don't exist because your HTML is wrong so you don't actually have form elements with those names.

<select name "ciudad"> and <select name "departamento">
            ^                          ^

They are each missing an equals sign. The syntax should be

<select id="ciudad" name="ciudad" style="width:150px">
                        ^

and

<select id="departamento" name="departamento" style="width:150px">
                              ^

Oh yes that was the error, tvm :D, I just didnt saw the typo :O — Altrazar, Dec 27 '13 at 18:46

PHP error undefined index

1 Answers1