The isset function does not check if the variable is empty. An empty string (what your e-mail input will be if the input is left blank) is considered as set. Consult the type comparison table.
Instead, you should use empty to check if the e-mail field has a value:
if(!empty($_POST['Email'])){
I have the following problem: Although I actually use “if isset” to check whether the variable contains a value, it is sufficient if only in $besteatigung has a value and the empty $ email is simply ignored. Can someone help me please?
(I am a beginner)
<html>
<head>
<link rel="stylesheet" href="style.css">
<title>Newslatter Anmeldung</title>
<meta charset="utf-8">
</head>
<body>
<div>
<form method="post" action="<?php echo htmlspecialchars($_SERVER['PHP_SELF']); ?>">
<p>Ihre E-Mail adresse bitte: </p>
<input type="email" name="Email">
<p>Anrede: (optional)</p>
<input type="radio" name="Geschlecht" value="Mann">
<label for="Geschlecht">Mann</label><br>
<input type="radio" name="Geschlecht" value="Frau">
<label for="Geschlecht">Frau</label><br>
<p>Vorname: (optional)</p>
<input type="text" name="Vorname">
<p>Nachname: (optional)</p>
<input type="text" name="Nachname">
<p><input type="checkbox" name="bestaetigung">hiermit bin ich einverstanden,<br> dass meine Daten elektronisch gespeichert werden,<br> damit mir die gewünschte Newsletter zugestellt werden kann ... <br>(gesetzliches Blahblah zum Datenschutz und Speicherung der Daten ....)</p>
<input type="submit" value="Anmelden" name="submit">
</form>
</div>
</body>
</html>
<?php
if(isset($_POST['submit'])){
if(isset($_POST['Email'])){
if(isset($_POST['bestaetigung'])){
$Email = htmlspecialchars(stripslashes(trim($_POST['Email'])));
$Geschlecht = $_POST['Geschlecht'];
$Vorname = htmlspecialchars(stripslashes(trim($_POST['Vorname'])));
$Nachname = htmlspecialchars(stripslashes(trim($_POST['Nachname'])));
$date = date("syHjin");
$file = fopen("nl-anwaerter.txt", "a");
fwrite($file, "$Email");
fwrite($file, "|");
fwrite($file, "$Geschlecht");
fwrite($file, "|");
fwrite($file, "$Vorname");
fwrite($file, "|");
fwrite($file, "$Nachname");
fwrite($file, "|");
fwrite($file, "$date");
fwrite($file, "n");
fclose($file);
$empaenger = "$Email";
$betreff = "Ihre Newsletter Anmeldung";
$from = "From: PHP mailer <[email protected]>rn ";
$from .= "Reply-To: [email protected]";
$from .= "Content-Type: text/htmlrn";
$msg = "<h1>Newsletter Anmeldung</h1><br><p>Hallo $Name $Nachname um dich entgültig für den Nwesletter anzumelden Klicke bitte auf folgenden Linl: ";
if(mail($empaenger,$betreff,$msg,$from)){
echo "Eine E-Mail wurde erfolgreich an $Email gesendet, bitte klicke auf den Link in dieser um die Anmeldung zu bestätiegen";
}
}
}
}
?>Hello, I have the following problem: Although I actually use “if isset” to check whether the variable contains a value, it is sufficient if only in $besteatigung has a value and the empty $ email is simply ignored. Can someone help me please?
(I am a beginner)
Oh right, thank you very much. I could have figured it out myself 🙂