Question

I have 2 questions. The first one is probably really easy but I don't know how to do it. I made a code that lets you save a music artist and a single and after you save it you can open it with a but I want to open it with a button how do i do that.

And the second question is when you open the saved files I get 20 lines of things that are empty and 1 that is full (sorry for my bad english). How do I change that into normal lines so it only makes a line if needed. Here are my 2 codes:

FILE NAME SEB2.php

<!DOCTYPE html>
<html>
<head>
    <title></title>
    <?php 

    if (!empty($_POST)) {           
                $artiest = $_POST["artiest"];   
                $single = $_POST["single"];
                    $fp = fopen("muziekcollectie.txt", "a+");
                    fputs($fp, $artiest."\r\n");
                    fputs($fp, $single."\r\n");
                    fclose($fp);
            }

    ?>
</head>
<body>
    <form name="woorden" method="post">
        Artiest:<input type="text" name="artiest"><br>
        Single:<input type="text" name="single"><br>
        <input type="submit" name="Add" value="Add"><br><br>
    <form>
        <a href="SEB2.php"><!-- <input type="submit" name="Watch" value="Watch" action="SEB2.php"> -->TEST</a>
</body>
</html>

FILE NAME SEB2.php

<!DOCTYPE html>
<html lang="nl">
    <head>
        <meta charset="utf-8">
        <title>Het gastenboek lezen</title>
    </head>
    <body>
        <?php
            $bestandsnaam = "muziekcollectie.txt";
            // aantal regels per bijdrage om in te lezen
            // elke bijdrage bestaat uit 5 regels
            $aantal_regels = 2;
            // teller om bij te houden hoeveel regels
            // zijn gelezen
            $teller = 0;
            // Aantal bijdragen wordt bijgehouden.
            $aantal_bijdragen = 0;
            // gastenboek openen om te lezen
            if (file_exists($bestandsnaam)){
            $fp = fopen($bestandsnaam, "r");
            }
            else{
            echo "<h2>De muziekcollectie is nog leeg!</h2>
            <a href= 'SEB1.php'>
            Wees de eerste die erin schrijft!</a> ";
            exit;
            }
            while (!feof($fp)){
            $regel = fgets($fp);
            if (!feof($fp)){
            if ($teller % $aantal_regels == 0){
            // kop afdrukken
            $aantal_bijdragen++;
            // echo "<hr>";

            echo "<h3>Bijdrage: $aantal_bijdragen</h3>";

            }
            }
            // regel afdrukken
            echo "$regel <br>";
            // echo "<hr>";
            $teller++;

            }

            echo "<a href='SEB1.php'>Terug naar de
            homepage</a>";
        ?>
    </body>
</html>

Answer 1

按钮链接不是很难

     <button onclick="window.location.href='SEB2.php';"></button>

我注意到你没有关闭你的表单，所以当你测试它时可能会出现问题。

我不确定你对第二部分的意思，但我认为这只是因为你没有对你的帖子进行空检查，所以空输入也会被添加到文件中。如果这是问题，这将解决它：

if (!empty($_POST['artiest']) && !empty($_POST['single']))

将按钮更改为<a>

1 个答案: