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webbsrvprg/exercises/cookie-session/

ovn_cook1.php
ovn_cook2.php
ovn_cook3.php
ovn_cook3hem.php
ovn_cook4.php
ovn_cook5.php

`ovn_cook4.php`

53 lines UTF-8 Windows (CRLF)

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<?php

session_start(); 



if (!isset($_SESSION['tal'])) {

  $_SESSION['tal'] = array();

}



$total = 0;

?>



<!DOCTYPE html>

<html lang="sv">

<head>

  <meta charset="UTF-8">

  <meta http-equiv="X-UA-Compatible" content="IE=edge">

  <meta name="viewport" content="width=device-width, initial-scale=1.0">

  <title>Cookie-Session 4</title>

</head>

<body>



  <form action="" method="post">

    Skriv in tal:

    <input type="text" name="tal" required> <br>

    <input type="submit">

  </form>



  <?php

  if ($_SERVER["REQUEST_METHOD"] == "POST") {

    if (isset($_POST["tal"]) && ($_POST["tal"] != "")) {

      array_push($_SESSION['tal'], $_POST["tal"]);

    }

  }



  if (!empty($_SESSION['tal'])) {

    foreach ($_SESSION['tal'] as $tal) {

      $total += $tal;

    }



    $antalTal = count($_SESSION['tal']);

    $medelvarde = $total / $antalTal;



    echo "<h3>Inmatade tal:</h3>";

    echo "<pre>";

    print_r($_SESSION['tal']);

    echo "</pre>";



    echo "<h3>Medelvärde:</h3> $medelvarde";

  }

  ?>

  

</body>

</html>