16c02-1.php

来自「介绍PHP5的给类型函数应用」· PHP 代码 · 共 37 行

<?php
// If we had a POST element called 'email', then we need to prep and send:
if (isset($_POST['email'])) {
    // Make sure it wasn't blank:
    $email = trim($_POST['email']);
    if ($email) {
        // Prepare by setting a timezone, mail() uses this.
        date_default_timezone_set('America/New_York');

        // Take the address given, prepend a magic string, and hash it:
        $hashed = md5('magic_string' . $email);
        
        // Make the email address ready to be sent via, well, email:
        $prepped = urlencode($email);
        
        // Generate the email message that these people need to verify:
        // For simplicity, doing this as pure text email at this point.
        mail($email, 'Please verify your email address', "
Someone has entered your email address into our form.

If it was you, and you wish to verify your address, please click the 
following link:
http://example.com/verify.php?e={$prepped}&h={$hashed}
", 'From: [e-mail]');

        // Let them know that this email is sent.
        echo "
<p>A verification email has been sent to {$email},
 please following the instructions included in it.</p>
";
    }
}
?>
<form action="<?= $_SERVER['PHP_SELF'] ?>" method="post" name="f1">
<p>What is your email address? <input name="email" type="text" /></p>
<p><input type="submit" /></p>
</form>