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- <?php
- $errors = [];
- if (
- isset($_GET['Vorname'])
- && mb_strlen(trim($_GET['Vorname'])) == 0
- ) {
- $errors['Vorname'] = 'Bitte Vornamen eingeben';
- }
- if (
- isset($_GET['Nachname'])
- && mb_strlen(trim($_GET['Nachname'])) == 0
- ) {
- $errors['Nachname'] = 'Bitte Nachnamen eingeben';
- }
- ?>
- <!DOCTYPE html>
- <html lang="en" dir="ltr">
- <head>
- <meta charset="utf-8">
- <title></title>
- <style rel="stylesheet">
- input {
- display:block;
- }
- input[type=text] {
- margin-bottom:2rem;
- }
- input[type="text"].hasError {
- background-color:red;
- }
- </style>
- </head>
- <body>
- <form action="#" method="get">
- <?php if (isset($errors['Vorname'])): ?>
- <input type="text" class="hasError" name="Vorname" value="" placeholder="<?= $errors['Vorname'];?>"/>
- <?php else: ?>
- <input type="text" name="Vorname" value="" />
- <?php endif; ?>
- <?php if (isset($errors['Nachname'])): ?>
- <input type="text" class="hasError" name="Nachname" value="" placeholder="<?= $errors['Nachname'];?>"/>
- <?php else: ?>
- <input type="text" name="Nachname" value="" />
- <?php endif; ?>
- <input type="submit" value="Absenden" />
- <input type="reset" value="Zurücksetzen" />
- </form>
- </body>
- </html>
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