我找过类似的问题，但没有找到我的特殊情况。
我使用的PHP验证码插件的形式，我有。我处理不正确和正确的验证码条目非常相似。如果用户的短语是正确的，我抛出一个javascript"成功"警报，发送表单电子邮件，然后将它们发送回最后一个页面。如果不正确，我抛出一个javascript "your incorrect"警报，并将它们发送回最后一页。
我的问题-如果他们是不正确的，我需要刷新验证码，因为有一个不正确的验证码条目，你总是需要刷新图像进行另一次尝试。此外，如果他们是正确的，我希望清除字段，但只有清除时正确，如果不正确，我要保持表单数据。我该怎么做呢?
这是我的PHP验证码，所以你可以看到我的尝试。如果你想要html，请告诉我…(我也检查了POST之前所有的JS条目)
<?php
/*set email*/
$myemail = "email@email.com";
/* Check all form inputs using check_input function */
$name = $_POST['name'];
$companyName = $_POST['companyName'];
$phone = $_POST['phone'];
$email = $_POST['email'];
$TimeForContact = $_POST['TimeForContact'];
$aval = $_POST['aval'];
$messageFromFrom = $_POST['message'];
$firstTime = $_POST['firstTime'];
$subject = "Some Subject";
require_once('recaptcha-php-1.11/recaptchalib.php');
$privatekey = "*someprivatekey*"; //I took this out for the question
$resp = recaptcha_check_answer ($privatekey,
$_SERVER["REMOTE_ADDR"],
$_POST["recaptcha_challenge_field"],
$_POST["recaptcha_response_field"]);
if (!$resp->is_valid) {
// What happens when the CAPTCHA was entered incorrectly
echo '<script type="text/javascript"> alert ("You have inserted the wrong phrase in the Captcha box. Please try again! Thank you."); window.history.back();</script>';
exit();
} else {
$message = "some message
End of message
";
/* Send the message using mail() function */
mail($myemail, $subject, $message);
echo '<script type="text/javascript"> alert ("Success! You have emailed your submission. Please await our response. Thank you."); window.history.back()</script>';
exit();
}
?>
我最初尝试通过JS重新加载页面，如:
window.reload(history.back());
或
window.location.reload(history.go(-1));
没有成功+多个类似的组合。
重申一下这个问题:
如何在需要时刷新表单/captcha
或
提交captcha表单时，您的实践行为是什么?
谢谢。
您应该这样做。本质上是检查错误并将错误压入错误数组，稍后可以循环并显示给用户。提交后，您检查验证码，如果无效，它将自动清除字段。不要使用警报或exit()之类的东西，一个简单的$errors数组就足够了。
//untested code
<?php
//check to make sure they submitted the form
if(isset($_POST['submit'])){
$errors = array();
$myemail = "email@email.com";
$name = $_POST['name'];
$companyName = $_POST['companyName'];
/* ... */
//recaptcha check
require_once('recaptcha-php-1.11/recaptchalib.php');
$privatekey = "*someprivatekey*";
$resp = recaptcha_check_answer (
$privatekey,$_SERVER["REMOTE_ADDR"],
$_POST["recaptcha_challenge_field"],
$_POST["recaptcha_response_field"]
);
//validate all data here
if (!$resp->is_valid) {
array_push($errors, "recaptcha invalid please try again");
}else if( /* name is invalid */) {
array_push($errors, "name invalid");
}else if (){
/* keep validing ...... with else if*/
}
/*....*/
else{
//everything validated so were good
mail($myemail, $subject, $message);
}
}
?>
<html>
<head>
<title></title>
</head>
<body>
<form action="process.php">
<!-- Your form here, "process.php" is this page itself -->
<input name="submit" type="submit" value="Send">
</form>
</body>
</html>