<html>
<head><title>Mail sender</title></head>
<body>
<form action=”mail.php” method=”POST”>
<b>Email</b><br>
<input type=”text” name=”email” size=40>
<p><b>Subject</b><br>
<input type=”text” name=”subject” size=40>
<p><b>Message</b><br>
<textarea cols=40 rows=10 name=”message”></textarea>
<p><input type=”submit” value=” Send “>
</form>
</body>
</html>
该窗体包含必要的文本字段电子邮件，主题，消息和发送按钮。该生产线<form action="mail.php" method="POST">告诉浏览器的PHP文件将处理的形式和使用什么方法发送data.When用户在填好表格，并点击发送按钮， mail.php文件被称为...
<html>
<head><title>PHP Mail Sender</title></head>
<body>
<?php
/* All form fields are automatically passed to the PHP script through the array $HTTP_POST_VARS. */
$email = $HTTP_POST_VARS['email'];
$subject = $HTTP_POST_VARS['subject'];
$message = $HTTP_POST_VARS['message'];
/*Validation of subject and also mail */
if (!preg_match(”/w+([-+.]w+)*@w+([-.]w+)*.w+([-.]w+)*/”, $email)) {
echo “<h4>Invalid email address</h4>”;
echo “<a href=’javascript教程:history.back(1);’>Back</a>”;
} elseif ($subject == “”) {
echo “<h4>No subject</h4>”;
echo “<a href=’javascript:history.back(1);’>Back</a>”;
}
/* Sends the mail and outputs the “Thank you” string if the mail is successfully sent, or the error string
otherwise. */
elseif (mail($email,$subject,$message)) {
echo “<h4>Thank you for sending email</h4>”;
} else {
echo “<h4>Can’t send email to $email</h4>”;
}
?>
</body>
</html>