PHP-SQL/php7-mysql-data
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Jan Unger
2016-08-16 21:20:53 +02:00
commit 88cf71d772
10930 changed files with 1708903 additions and 0 deletions
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7
Kapitel_8/Lektion_5/1_xss.php Normal file
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<?php
// FALSCH!!!
echo $eineVariable;
// Richtig
echo htmlspecialchars($eineVariable);

19
Kapitel_8/Lektion_5/2_formular.php Normal file
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<?php
if (isset($_POST['benutzername'])) {
$benutzername = $_POST['benutzername'];
} else {
$benutzername = '';
}
?>
<form action="" method="post">
<!-- FALSCH!!! -->
<input type="text" name="benutzername" value="<?= $benutzername; ?>"/>
<!-- Richtig -->
<input type="text" name="benutzername" value="<?= htmlspecialchars($benutzername); ?>"/>
<input type="submit"/>
</form>