http://www.3dmark3t.com/contact.html 1这是我的联系表格,我希望在 10 分钟内只允许来自 1 个 IP 地址的 2 次提交。请在这件事上给予我帮助?这是我用于表单验证的 php 脚本:
<?php
if(isset($_POST['email'])) {
// CHANGE THE TWO LINES BELOW
$email_to = "email@domain.com";
$email_subject = "3DMark3t Contact:";
function died($error) {
// your error code can go here
echo "We are very sorry, but there were error(s) found with the form you submitted. ";
echo "These errors appear below.<br /><br />";
echo $error."<br /><br />";
echo "Please go back and fix these errors.<br /><br />";
die();
}
// validation expected data exists
if(!isset($_POST['first_name']) ||
!isset($_POST['last_name']) ||
!isset($_POST['email']) ||
!isset($_POST['telephone']) ||
!isset($_POST['comments'])) {
if(empty($_POST['select']) )
{
$var3dmodels = $_POST['3DModels'];
$vargraphic_design = $_POST['Graphic Design'];
$varweb_design = $_POST['Web Design'];
$vartutorials = $_POST['Tutorials'];
$varreport = $_POST['Report'];
$varrequests = $_POST['Requests'];
}
died('We are sorry, but there appears to be a problem with the form you submitted.');
}
$first_name = $_POST['first_name']; // required
$last_name = $_POST['last_name']; // required
$email_from = $_POST['email']; // required
$telephone = $_POST['telephone']; // not required
$select = $_POST['select']; // required
$comments = $_POST['comments']; // required
$error_message = "";
$email_exp = '/^[A-Za-z0-9._%-]+@[A-Za-z0-9.-]+\.[A-Za-z]{2,4}$/';
if(!preg_match($email_exp,$email_from)) {
$error_message .= 'The Email Address you entered does not appear to be valid.<br />';
}
$string_exp = "/^[A-Za-z .'-]+$/";
if(!preg_match($string_exp,$first_name)) {
$error_message .= 'The First Name you entered does not appear to be valid.<br />';
}
if(!preg_match($string_exp,$last_name)) {
$error_message .= 'The Last Name you entered does not appear to be valid.<br />';
}
if(empty($_POST['select']))
{
$error_message .= 'The Selection you made does not appear to be valid.<br />';
}
if(strlen($comments) < 2) {
$error_message .= 'The Comments you entered do not appear to be valid.<br />';
}
if(strlen($error_message) > 0) {
died($error_message);
}
$email_message = '3DMark3t Contact:';
function clean_string($string) {
$bad = array("content-type","bcc:","to:","cc:","href");
return str_replace($bad,"",$string);
}
$email_message .= "First Name: ".clean_string($first_name)."\n";
$email_message .= "Last Name: ".clean_string($last_name)."\n";
$email_message .= "Email: ".clean_string($email_from)."\n";
$email_message .= "Telephone: ".clean_string($telephone)."\n";
$email_message .= "Select One: ".clean_string($select)."\n";
$email_message .= "Comments: ".clean_string($comments)."\n";
// create email headers
$headers = 'From: '.$email_from."\r\n".
'Reply-To: '.$email_from."\r\n" .
'X-Mailer: PHP/' . phpversion();
@mail($email_to, $email_subject, $email_message, $headers);
?>
<!-- place your own success html below -->
<img src="../images/loading-circle.gif" width="32" height="32" /> Thank you for contacting us. We will be in touch with you very soon.
<script type = "text/javascript">setTimeout('window.opener.location.href=\'http://www.3dmark3t.com\';close();', 3000)</script>
<?php
}
die();
?>