[RESOLVED] nothing happens on submit

fiorelina21

hi . i have the fallowing script:

if (isset($_POST['n']))
 {$n=$_POST['n'];

 if ((isset($HTTP_COOKIE_VARS['max'])) && (isset($HTTP_COOKIE_VARS['min'])) && (isset($HTTP_COOKIE_VARS['med']))
     &&(isset($HTTP_COOKIE_VARS['tot'])) && (isset($HTTP_COOKIE_VARS['cont'])))
   {
    $max=$HTTP_COOKIE_VARS['max'];
     $min=$HTTP_COOKIE_VARS['min'];
    $med=$HTTP_COOKIE_VARS['med'];
    $tot=$HTTP_COOKIE_VARS['tot'];
    $cont=$HTTP_COOKIE_VARS['cont'];
    if ($n>$max)
     { $max=$n;
     }
    if ($n<$min)
      {$min=$n;
      }
    $cont=$cont+1;
    $tot=$tot+$n;
    $med=$tot/$cont;
    setcookie("max", $max);
    setcookie("min", $min);
    setcookie("med", $med);
    setcookie("tot", $tot);
    setcookie("cont", $cont);
    echo "<hr>";
    echo "Minimo    :".$min;
    echo "Massimo   :".$max;
    echo "Media     :".$med;
    echo "Conteggio :".$cont;
   }
 else
    {  

      setcookie("max", $n);
      setcookie("min", $n);
      setcookie("med", $n);
       setcookie("cont", 1);

   }
}
echo "<HR>";
echo "<FORM NAME=\"num\" METHOD=\"post\" ACTION=".$_SERVER['PHP_SELF'].">";
?>
NUMERO
<INPUT TYPE="text" NAME="n">
<BR><HR>
<INPUT TYPE="SUBMIT" NAME="SUBMIT" VALUE="AGGIORNA">
<HR>
</FORM>
</BODY>
</HTML>

why doesn't anything happen on submit? it should print $min, $max, $tot, $med and $cont
thanks for any help
i'm sory for the size of the code but i didn't want to create confusion

dougal85

Well, your HTML isn't valid. You don't have any quotes around the action. could be that

fiorelina21

dougal85 wrote:
Well, your HTML isn't valid. You don't have any quotes around the action. could be that

could u pls tell me how should i change the code?😕
thanks

mikawhat

echo "<FORM NAME=\"num\" METHOD=\"post\" ACTION=\"".$_SERVER['PHP_SELF']."\">";

or you could just use:

<FORM NAME="num" METHOD="post" ACTION="<?=$_SERVER['PHP_SELF']?>">

after the closing ?>

fiorelina21

i' ve changed the code the way you' ve sudgested but it still won't do anything after submit

mikawhat

just try

if (isset($_POST['n'])) {
  echo $_POST['n'];
} else {
  echo "Nothing";
}

to see if it's ok...which should be...so there's probably something wrong in your code

or...

 if ((isset($HTTP_COOKIE_VARS['max'])) && (isset($HTTP_COOKIE_VARS['min'])) && (isset($HTTP_COOKIE_VARS['med']))
     &&(isset($HTTP_COOKIE_VARS['tot'])) && (isset($HTTP_COOKIE_VARS['cont'])))
   {

this is not true so the else action is executed which doesn't actually display anything

fiorelina21

mikawhat wrote:
this is not true so the else action is executed which doesn't actually display anything

ok. this should happen the first time that i execute the script?
the second time i execute it shouldn't it have allready memorized the values inserted at the first execution?and print them?

mikawhat

not really... in the else action you create 4 vars, while in your if statement you check for 5...so it's never true...

fiorelina21

could u pls sudgest me how should i change the script?:o

user404

Here's one that works... Note: you may want to add a two second wait after the cookies reset so that the reload after the reset displays correctly.


<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" 
     "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en">
  <head>
    <meta http-equiv="content-type" content="text/html; charset=utf-8" />
    <title>procnum.php</title>
  </head>
  <body>
    <?php

  define ('BRC', '<br />');

  if (isset($_POST['n']))
  {
    $n=$_POST['n'];

    if  ( (isset($_COOKIE['max'])) && 
          (isset($_COOKIE['min'])) && 
          (isset($_COOKIE['med'])) && 
          (isset($_COOKIE['tot'])) && 
          (isset($_COOKIE['cont']))
        )
    {
      $max= $_COOKIE['max'];
      $min= $_COOKIE['min'];
      $med= $_COOKIE['med'];
      $tot= $_COOKIE['tot'];
      $cont=$_COOKIE['cont'];

      if ($n>$max) { $max=$n; }
      if ($n<$min) { $min=$n; }
      $cont++;
      $tot += $n;
      $med=$tot/$cont;

      setcookie("max", $max);
      setcookie("min", $min);
      setcookie("med", $med);
      setcookie("tot", $tot);
      setcookie("cont", $cont);


      echo "<hr />";
      echo "Minimo    :" . $min . BRC;
      echo "Massimo   :" . $max . BRC;
      echo "Media     :" . $med . BRC;
      echo "Conteggio :" . $cont . BRC;
    }
    else
    {  
      setcookie("max", $n);
      setcookie("min", $n);
      setcookie("med", $n);
      setcookie("tot", $n); ## This line was not in original script
      setcookie("cont", 1);
    }
  }
  if (isset($_POST['reset']))
  {
    setcookie("max", "", time()-3600);
    setcookie("min", "", time()-3600);
    setcookie("med", "", time()-3600);
    setcookie("tot", "", time()-3600); 
    setcookie("cont", "", time()-3600);
  }
?>

<form name="num" id="num" method="post" action="<?php echo $_SERVER['PHP_SELF']; ?>" >
  <fieldset><legend>Entre un numero:</legend>
    <label for="n">Numero</label><br />
    <input name="n" id="n" type="text" size=6 maxlength=6 />
  </fieldset>
  <input name="submit" id="submit" type="submit" value="Aggiorna!" />
  <input name="reset" id="reset" type="submit" value="Vacie los datos almacenados" />
</form>
  </body>
</html>

-- User404