所以我有一个用户在提交之前填写或不填写的联系表格。我有一个PHP脚本，它将执行输入内容而不是Javascript的验证，以提高安全性。我将PHP脚本编码为JSON格式，然后再将其传递给Javascript。我希望Javascript能够相应地显示错误消息，而PHP只是为了处理验证和发送电子邮件（成功时）。
我遇到的问题是在将错误传递给Javascript之前正确注册错误的好方法。这是我到目前为止的PHP表单（它已被编辑以删除错误消息的打印）：
<?php
ob_start();
/* Put Here email where you will receive Contact message*/
$yourEmail = "email@email.com"; // <== Your Email
$secret = 'LALALALAALALALALALALA'; // <==Your recaptcha Privte Key
/*---------------------------------------*/
// ---------------------Start the recaptcha ------------------------------------//
if(isset($_POST['g-recaptcha-response']) && ($_POST['g-recaptcha-response'])){
session_start();
$ip = $_SERVER['REMOTE_ADDR'];
$captcha = $_POST['g-recaptcha-response'];
$response = file_get_contents("https://www.google.com/recaptcha/api/siteverify?secret=$secret&response=$captcha&remoteip=$ip");
$result = json_decode($response,TRUE);
if($result['success'] == 1){
$_SESSION['result'] = $result['success'];
}
// --------------------End Of the Captcha Check------------------------- //
/////////////Showing all errors in array : DO NOT DELETE THIS
$formerrors = array();
///////////////////This Array will Hold all errors
// Start Captcha
if(!isset($_SESSION['result']) || $_SESSION['result'] == 0){
$formerrors[] = 'Captcha Error';
}
//end Captcha
// remove this to make name not required
if(empty($_POST['name'])){
$formerrors[] = "Name Cannot be empty";
}
// End name
// Remove this to make email not required
if(empty($_POST['email'])){
$formerrors[] = "Email Cannot be empty";
}
// End of email
// Remove this to make email not required
if(filter_var($_POST['email'],FILTER_VALIDATE_EMAIL) == FALSE){
$formerrors[] = "Make Sure Email is valid";
}
// End of email
// Remove this to make Phone not required
if(empty($_POST['phone'])){
$formerrors[] = "Phone Number Cannot be empty";
}
// End of Phone
// Remove this to make Phone not required
if(!is_numeric($_POST['phone'])){
$formerrors[] = "Phone Is not valid";
}
// End of Phone
// Remove this to make Message not required
if(empty($_POST['message'])){
$formerrors[] = "Message Cannot be empty";
}
// End Of Message
// Remove this to make Subject not required
if(empty($_POST['subject'])){
$formerrors[] = "Select a subject First";
}
// End Of Subject
/* Your New inputs */
// CODE HERE
/* end of new Inputs*/
// End Showing Errors In Array
//JSON Encode
echo json_encode($formerrors);
if(count($formerrors) == 0){
// Saving data in variable :
$name = $_POST['name'];
$email = $_POST['email'];
$phone = $_POST['phone'];
$title = $_POST['subject'];
$message = $_POST['message'];
/* Your New inputs */
// $newinput = $_POST['new-input'] // new-input same as ID and ajax
/* end of new Inputs*/
//If No Error in the Array Start Sending the email
$to = $yourEmail; // Email to receive contacts
$from = $email;
$subject = 'Contact Form Email : ' . $title;
$message = '<style>
body{background-color:#fefefe}
.email-style {padding: 30px;background: #fafafa;font-size: 18px;border: 1px solid #ddd;width: 60%;margin: auto;}
p {padding: 15px 0px;}
</style>
<div class="email-style"><p> '.$title . '</p>
<p>Contact Full Name : '.$name . ' </p>
<p>Contact Email : '.$email . ' </p>
<p>Contact Phone Number : '.$phone . '</p>
<p>Message : '.$message . ' </p>
<p>Cheers,</p>
<p>'.$name.' Via Contact Form</p></div>';
$headers = "From: $from\n";
$headers .= "MIME-Version: 1.0\n";
$headers .= "Content-type: text/html; charset=iso-8859-1\n";
if( mail($to, $subject, $message, $headers) ){
echo "sent";
session_unset();
session_destroy();
} else {
echo "The server failed to send the message. Please try again later.";
}
}
}
ob_flush();
?>
任何人都可以建议一种正确而干净地注册错误消息的方法吗？