VL Übungen #1

2026-06-01 16:39:42 +00:00 · 2026-04-14 19:30:13 +02:00
parent 168b213166
commit efb2b480f8
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 # Enable PHP in Nginx
 run in bash:
 ```bash
 sudo apt install php-fpm -y
 ```
 get php version/sock
 ```bash
 ls -l /run/php/*.sock
 ```
 add to nginx config (server section):
 ```nginx
 # pass PHP scripts to FastCGI server
 #
 location ~ \.php$ {
        include snippets/fastcgi-php.conf;
        fastcgi_pass unix:/run/php/php8.4-fpm.sock; # <-- use version from output above!
 }
 ```
 validate nginx configuration & restart if ok:
 ```bash
 sudo nginx -t
 sudo systemctl reload nginx
 ```
 create Demo-App:
 ```bash
 sudo vi /var/www/*domain-name*/*webapp*.php
 ```
 ## Demo Webapp (Addressbook)
 ```php
 <?php
 // Wir simulieren eine einfache Speicherung in einer Textdatei
 $db_file = 'names.txt';
 // 1. Speichern, wenn das Formular abgeschickt wurde
 if (isset($_POST['name'])) {
    file_put_contents($db_file, $_POST['name'] . PHP_EOL, FILE_APPEND);
 }
 // 2. Auslesen der Namen
 $names = file_exists($db_file) ? file($db_file) : [];
 ?>
 <!DOCTYPE html>
 <html>
 <head>
    <title>Demo: Addressbook</title>
 </head>
 <body>
    <h2>Einfaches Adressbuch</h2>
    <form method="POST">
        <input type="text" name="name" placeholder="Name eingeben..." required>
        <button type="submit">Speichern</button>
    </form>
    <hr>
    <h3>Eintr&auml;ge:</h3>
    <?php foreach ($names as $name): ?>
        <div class="entry">
            Benutzer: <?php echo $name; ?>
        </div>
    <?php endforeach; ?>
    <p><small><a href="?clear=1">Liste leeren</a></small></p>
    <?php if(isset($_GET['clear'])) { file_put_contents($db_file, "" . PHP_EOL); } ?>
 </body>
 </html>
 ```
 create txt file (as database):
 ```bash
 cd /var/www/*domain-name*
 sudo touch names.txt
 sudo chown www-data:www-data names.txt
 sudo chown www-data:www-data *webapp*
 ```
 testing the webapp:
 ```
 http://*domain-name*/*webapp*.php
 ```