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webbsrvprg/exercises/formulär/

ovn_form1.php
ovn_form2.php
ovn_form3.php
ovn_form4.php
ovn_form5.php
ovn_form6.php
ovn_form7.php
ovn_form7res.php
ovn_form8.php

`ovn_form8.php`

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<!DOCTYPE html>

<html lang="en">

<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>Formulär 8</title>

</head>

<body>

  <?php

    $tal = $tal2 = $tal3 = "";



    function medelVärde($tal1, $tal2, $tal3) {

      return ($tal1 + $tal2 + $tal3)/3;

    }



  ?>



  <form method="post" action="<?php echo htmlspecialchars($_SERVER["PHP_SELF"]);?>">

    Skriv ett tal i varje ruta: <br>

    Tal1: <input type="text" name="tal1" required> <br>

    Tal2: <input type="text" name="tal2" required> <br>

    Tal3: <input type="text" name="tal3" required> <br>

    <input type="submit" value="Beräkna">



  </form>

  <br>



  <?php

  if ( isset($_POST["tal1"]) && isset($_POST["tal2"]) && isset($_POST["tal3"]) ) {

    echo "Medelvärde: ". medelVärde($_POST["tal1"], $_POST["tal2"], $_POST["tal3"]);

  }

  ?>

</body>

</html>