CODEWITHSUNDEEP
phpformssubmit
Didzis
Didzis

Reputation: 186

Each time I press submit I want input text box change text

So basically I have a simple form and I want to change the input boxes text different every time you press submit by using PHP. I know my code doesn't work but I don't understand how to solve this problem. Maybe the array is not the best way to do this?

<body>
    <?php 
        if(isset($_GET['submit'])) exit();
        $msg= ['One', 'Two', 'Three', '']
    ?>

    <form action="<?php echo $_SERVER['PHP_SELF']?>">
    <input type="submit" name="submit" value="Paina nappi">
    <input type="text" name="msg" value="<?php echo (isset($msg)) ? $viesti : ''; ?>">
    </form>
</body>

Upvotes: 1

Views: 195

Answers (1)

Sacha COHEN
Sacha COHEN

Reputation: 52

You could write something like this:

<?php
    session_start();

    $msgArray= array('One', 'Two', 'Three', '');
    // if $_SESSION['msgIndex'] is not set, we initialize it, or it will take 0 value every loading page
    if (!isset($_SESSION['msgIndex'])) { $_SESSION['msgIndex'] = 0;  }

    if (isset($_GET['submit'])) {
        getMessage();
    }

    // We save msgIndex in a $_SESSION variable cause even if the user reload the page, we keep the value
    function getMessage() {
        if ($_SESSION['msgIndex'] >= 0) {
            $_SESSION['msgIndex'] += 1;
        } if ($_SESSION['msgIndex'] > 3) {
            $_SESSION['msgIndex'] = 0;
        }
    }
?>

<form action="<?php echo $_SERVER['PHP_SELF']?>">
    <input type="submit" name="submit" value="Paina nappi">
    <input type="text" name="msg" value="<?= $msgArray[$_SESSION['msgIndex']] ?>">
</form>

Upvotes: 1

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