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PHP - Use of classes This is a further development of the previous task, the participant...

PHP - Use of classes

This is a further development of the previous task, the participant registration. You must use the following Participant class.

<?php

class Deltaker
{
        private $etterNavn;
        private $forNavn;
        private $fAar;

        function __construct(string $fornavn, string $etternavn, string $aar) {
            $this->forNavn = $fornavn;
            $this->etterNavn = $etternavn;
            $this->fAar = $aar;
        }

        function hentEtterNavn() : string {
           return $this->etterNavn;
        }
         function hentForNavn() : string {
           return $this->forNavn;
        }
        function hentFAar() :  string{
            return $this->fAar;
        }
        //Setters
        function settForNavn(string $fornavn) {
           $this->forNavn = $fornavn;
        }.
        function settEtterNavn(string $etterNavn) {
            $this->etterNavn = $etterNavn;
        }
        function settFAar(string $aar) {
            $this->fAar = $aar;
        }
}
?>

1. Create the Attendee class in the file Deltaker.class.php.

2. For this class to become known to the PHP participant registration script, it must be included in the script with

3.   require_once ('Deltaker.class.php');

This is the code I have so far in the PHP participant registration script so far :

<!DOCTYPE html>
<html>
<head>
    <title>Deltaker registrering</title>
    <meta charset="utf-8" />
    <link rel="stylesheet" type="text/css" href="layout.css"/>
    <link href="https://fonts.googleapis.com/css?family=Happy+Monkey" rel="stylesheet">
</head>
<body>
<h1>Konferansen IKT i undervisningen</h1>
<h2>Registrering</h2>

<?php

require_once ('Deltaker.class.php');

$validate = false;
$fornavn = "";
$etternavn = "";
$fAr = "";
$aar = date ('Y');

//sjekk at skjema er sendt inn
if(isset($_POST['submit'])) {
    if(is_numeric($_POST['fAar'])){
        print("<h1>Fornavn: " . $_POST['forNavn'] . "</h1>");
        print("<h1>Etternavn: " . $_POST['etterNavn'] . "</h1>");
        print("<h1>Yrke: " . $_POST['yrkesValg'] . "</h1>");


        $validate = true;
        //beregn alder
        $dob=$_POST['fAar'];
        $diff = (date('Y') - date('Y',strtotime($dob)));
        echo "Alder: " . $diff;
        echo "<p>Du er registrert " . date('H:i, jS F Y') . "</p>";

        ;
    } else {
        print("Årstall må være numerisk");
        $validate = false;
        $_POST['forNavn'];
        $_POST ['etterNavn'];

    }
}
if(!$validate) {

?>
<form method="post">
    <label>Fornavn:</label>
    <input type="text" name="forNavn" value="<?php echo $fornavn?>" />
    <label>Etternavn:</label>
    <input type="text" name="etterNavn" value="<?php echo $etternavn?>" />
    <label>Fødselsår:</label>
    <input type="text" name="fAar" size="4"/>
    <label>Yrke:</label>
    <select name="yrkesValg">
        <option value="pizzabaker" <?php if(isset($_POST['yrkesValg']) && $_POST['yrkesValg']== "pizzabaker") echo "selected"; ?>>
            Pizzabaker
        </option>
        <option value="systemutvikler" <?php if(isset($_POST['yrkesValg']) && $_POST['yrkesValg']== "systemutvikler") echo "selected"; ?>>
            Systemutvikler
        </option>
        <option value="arkitekt" <?php if(isset($_POST['yrkesValg']) && $_POST['yrkesValg']== "arkitekt") echo "selected"; ?>>
            Arkitekt
        </option>
        <option value="journalist"<?php if(isset($_POST['yrkesValg']) && $_POST['yrkesValg']== "journalist") echo "selected"; ?>>
            Journalist
        </option>
    </select><br /><br />
    <input type="submit" name="submit" value="Submit">

    <?php
    }

    ?>
</body>
</html>

4. When the form is submitted, a new instance of Participant must be created, then the methods (get) must be used to print the properties for the participant and obtain the year of birth.

5. Add a selection list to the Participant Profession Registration Form and add 6 options.

1. Initially, you can hardcode the selection list with these 6 options, ie with 6 option items.

2. In the next issue, you create an array of the relevant career choices. Then create a foreach loop that prints an option item for each of the career choices in the array.

6. Modify the Participant class with required data members and get & set methods to take care of career choices for participants.

7. When submitting a form, it is now also necessary to print a career choice, use a new method for this.

engineering   Computer-Science   
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Homework Answers

Answer #1

//Deltaker.class.php

<?php

class Deltaker

{

private $etterNavn;

private $forNavn;

private $fAar;

private $yrkesValg;

function __construct(string $fornavn, string $etternavn, string $aar, string $yrke) {

$this->forNavn = $fornavn;

$this->etterNavn = $etternavn;

$this->fAar = $aar;

$this->yrkesValg = $yrke;

}

function hentEtterNavn() : string {

return $this->etterNavn;

}

function hentForNavn() : string {

return $this->forNavn;

}

function hentFAar() : string{

return $this->fAar;

}

function hentYrkesValg() : string{

return $this->yrkesValg;

}

//Setters

function settForNavn(string $fornavn) {

$this->forNavn = $fornavn;

}

function settEtterNavn(string $etterNavn) {

$this->etterNavn = $etterNavn;

}

function settFAar(string $aar) {

$this->fAar = $aar;

}

function settYrkesValg(string $yrke){

$this->yrkesValg = $yrke;

}

}

?>

//form

<!DOCTYPE html>

<html>

<head>

<title>Deltaker registrering</title>

<meta charset="utf-8" />

<link rel="stylesheet" type="text/css" href="layout.css"/>

<link href="https://fonts.googleapis.com/css?family=Happy+Monkey" rel="stylesheet">

</head>

<body>

<h1>Konferansen IKT i undervisningen</h1>

<h2>Registrering</h2>

<?php

require_once ('Deltaker.class.php');

$validate = false;

$fornavn = "";

$etternavn = "";

$fAr = "";

$aar = date ('Y');

$careerChoices = array("pizzabaker", "systemutvikler", "arkitekt", "journalist");

//sjekk at skjema er sendt inn

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

if(is_numeric($_POST['fAar'])){

$obj = new Deltaker($_POST['forNavn'],

$_POST['etterNavn'],

$_POST['yrkesValg'],

$_POST['fAar']);

$validate = true;

print("<h1>Fornavn: " . $obj->hentForNavn() . "</h1>");

print("<h1>Etternavn: " . $obj->hentEtterNavn() . "</h1>");

print("<h1>Yrke: " . $obj->hentYrkesValg() . "</h1>");

//beregn alder

$dob=$obj->hentFAar();

$diff = (date('Y') - date('Y',strtotime($dob)));

echo "Alder: " . $diff;

echo "<p>Du er registrert " . date('H:i, jS F Y') . "</p>";

} else {

print("Årstall må være numerisk");

$validate = false;

$_POST['forNavn'];

$_POST ['etterNavn'];

}

}

if(!$validate) {

?>

<form method="post">

<label>Fornavn:</label>

<input type="text" name="forNavn" value="<?php echo $fornavn?>" />

<label>Etternavn:</label>

<input type="text" name="etterNavn" value="<?php echo $etternavn?>" />

<label>Fødselsår:</label>

<input type="text" name="fAar" size="4"/>

<label>Yrke:</label>

<select name="yrkesValg">

<?php foreach($careerChoices as $career) {?>

<option value="<?php echo $career; ?>" <?php if(isset($_POST['yrkesValg']) && $_POST['yrkesValg']== $career) echo "selected"; ?>>

<?php echo $career; ?>

</option>

<?php } ?>

</select><br /><br />

<input type="submit" name="submit" value="Submit">

<?php

}

?>

</body>

</html>

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