POST input to mail() - php

Question

echo '<div id="email">
<form action="#" method="POST">
<label>E-mailadres:</label>
<p><input type="text" name="mail1" value="me#me.nl"> </p>
<input type="submit" name="submitemail">
</form>
</div>';
$to = 'MY#MAIL.COM';
$lala = $_POST['mail1'];
// subject
$subject = 'Subject';
// message
$message = $selected . $totaal .'';
// To send HTML mail, the Content-type header must be set
$headers = 'MIME-Version: 1.0' . "\r\n";
$headers .= 'Content-type: text/html; charset=iso-8859-1' . "\r\n";
$headers .= 'From: ' . $lala . ' <' . $lala . '>';
// Mail it
mail($to, $subject, $message, $headers);
Sending the email is working fine, it just wont let catch the inserted email.
I can't get the value of <input .... name="mail1"> (me#me.nl) into the "FROM:" section.
What do i wrong OR what is the thing that i don't do in this case ?
Whenever using $headers .= 'From: Birthday Reminder <birthday#example.com>' . "\r\n"; it works perfectly.

Answer 1

Try
echo '<div id="email">
<form action="a.php" method="POST">
<label>E-mailadres:</label>
<p><input type="text" name="mail1" value="me#me.nl"> </p>
<input type="submit" name="submitemail">
</form>
</div>';
if (isset($_POST['submitemail'])) {
$to = 'MY#MAIL.COM';
$lala = $_POST['mail1'];
// subject
$subject = 'Subject';
// message
$message = $selected . $totaal . '';
// To send HTML mail, the Content-type header must be set
$headers = 'MIME-Version: 1.0' . "\r\n";
$headers .= 'Content-type: text/html; charset=iso-8859-1' . "\r\n";
$headers .= 'From: ' . $lala . ' <' . $lala . '>';
// Mail it
mail($to, $subject, $message, $headers);
}
the a.php is the name of ur php file