Help with acumulator (?) newbie

JOrGeX_

Hi, i need help with this script, because if i check 2 checkboxs, it still telling me that i practice only one sport......

it's a very simple script, i'm just learning php.....

page1.php

<html>
<head>
<title>Problema</title>
</head>
<body>
<form action="pagina2.php" method="post">
Ingrese su nombre:
<br>
<input type="text" name="nombre">
<br>
Qué deportes practica?
<br>
<input type="checkbox" name="futbol">Futbol
<br>
<input type="checkbox" name="basket">Basket
<br>
<input type="checkbox" name="tennis">Tennis
<br>
<input type="checkbox" name="volley">Volley
<br>
<input type="submit" value="Procesar">
</form>
</body>
</html>

page2.php

<html>
<head>
<title>Problema</title>
</head>
<body>

<?php

 if (isset($_REQUEST['futbol']))
  {
    $aff=1;
  }
  if (isset($_REQUEST['basket']))
  {
    $aff=1;
  }
   if (isset($_REQUEST['tennis']))
  {
    $aff=1;
  }
  if (isset($_REQUEST['volley']))
  {
    $aff=1;
  }
$cont = $cont + $aff;
echo "<b>Nombre: ".$_REQUEST['nombre']."</b><br>";
echo "Cantidad de deportes que practica: $cont";
?>

</body>
</html>

waptech

Well the problem resides with the fact that with every $aff=1; overwrites the old 1.

<html> 
<head> 
<title>Problema</title> 
</head> 
<body> 

<?php 
$aff = 0;
if (isset($_REQUEST['futbol'])) 
  { 
    $aff= $aff + 1; 
  } 
  if (isset($_REQUEST['basket'])) 
  { 
    $aff= $aff + 1;
  } 
   if (isset($_REQUEST['tennis'])) 
  { 
    $aff= $aff + 1; 
  } 
  if (isset($_REQUEST['volley'])) 
  { 
    $aff= $aff + 1; 
  } 
$cont = $aff; 
echo "<b>Nombre: ".$_REQUEST['nombre']."</b><br>"; 
echo "Cantidad de deportes que practica: $cont"; 
?> 

</body> 
</html>

This should work fine.
Hope I helped.

JOrGeX_

Yes, thanks u very much!

I did it in that way because in algoritms at school we make acumulators like this:

Acu = Acu + Variable

See u

waptech

Yes that is the correct way of doing acumulators, you just had them in the wrong place 🙂
We all learn as we go, good luck with the rest of your script and you know were to come for more help if you get stuck again.

bpat1434

As an alternative method, since those are all "sports" or "activities" you could also name them all the same, add [] after the name to define it as an array, and then [man]count/man the posted array 😉

<html>
<head>
<title>Problema</title>
</head>
<body>
<form action="pagina2.php" method="post">
Ingrese su nombre:
<br>
<input type="text" name="nombre">
<br>
Qué deportes practica?
<br> <input type="checkbox" name="activity[]" value="futbol" /> Futbol
<br> <input type="checkbox" name="activity[]" value="basket" /> Basket
<br> <input type="checkbox" name="activity[]" value="tennis" /> Tennis
<br> <input type="checkbox" name="activity[]" value="volley" /> Volley
<br>
<input type="submit" value="Procesar">
</form>
</body>
</html>

<?php

$activites = $_POST['activity'];

echo '<b>Nombre: ' . $_POST['nombre'] . '</b><br>
Cantidad de deportes que practica: ' . count($activities);
?>

Just thought I'd throw that out there.