我的网站上有一个表格,我从人们那里收到了大量的空邮件,我想我只是按发送而不实际填写表格,这有点烦人,我对 PHP 的了解非常有限,我很想知道我需要什么更改为停止接收空邮件。表单和PHP的代码如下。<form method="post" action="contact.php"><fieldset><legend>Contact us:</legend><input type="text" name="sender" placeholder="Name *"><input type="text" name="senderEmail" placeholder="Email *"><textarea name="message" placeholder="Message" rows="5" cols="95"></textarea></fieldset><input type="submit" value="Send" name="submit" /></form><?phpif($_POST["submit"]) { $recipient="example@example.com"; $subject="New email from form"; $sender=$_POST["sender"]; $senderEmail=$_POST["senderEmail"]; $message=$_POST["message"]; $mailBody="Name: $sender\nEmail: $senderEmail\n\n$message"; mail($recipient, $subject, $mailBody, "From: $sender <$senderEmail>"); $thankYou="<p>Thanks! Your message has been sent.</p>";}
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