我有以下简单的表单,我试图将电子邮件验证错误 在提交之前显示在表单中以显示错误。
有没有办法用PHP执行此操作,还是必须使用JSON?
如果我必须使用JSON,有人可以告诉我如何做到这一点吗?
提前致谢。
form.html:
<form method="post" name="form" action="form.php">
<p>Robot: <input type="text" name="robot" ></p>
<p>Name: <input type="text" name="name" ></p>
<p>Email: <input type="email" name="email"></p>
<p>Phone: <input type="telephone" name="phone"></p>
<p>Message: <textarea name="message"></textarea></p>
<p><input type="submit" value="Send Form"></p>
</form>
<div id="error"></div>
form.php的
<?php
// send to and from
$to = "email@example.com";
$headers = "From: email@example.com \r\n";
$headers .= "Reply-To: email@example.com \r\n";
// form inputs
$name = $_POST['name'];
$email = $_POST['email'];
$phone = $_POST['phone'];
$message = $_POST['message'];
$robot = $_POST['robot'];
// email message
$email_subject = "Web Contact Message";
$email_body =
"A message from your website contact form \n\n".
"Email: $email \n\n".
"Phone: $phone \n\n".
"From: $name \n\n".
"Message: \n".
"$message \n";
// honeypot
if($robot)
header( "Location: http://www.example.com/nothankyou.html" );
else{
//validate email
if(!filter_var($email, FILTER_VALIDATE_EMAIL))
{
echo '<div id="error">Please Enter a Valid Email</div>';
}
else
{
// send it
mail($to,$email_subject,$email_body,$headers);
header( "Location: http://www.example.com/thankyou.html" );
}
}
?>
答案 0 :(得分:0)
您可以尝试使用javascript / jquery插件进行前端验证(例如http://jqueryvalidation.org/,http://bootstrapvalidator.com/)。如果您仍想保留现有代码,我建议使用以下内容:
首先,将form.html合并到form.php 确保你的php邮件代码保留在文件的顶部,因为php标头在调用它们之前不能完成任何输出。
<?php
if (count($_POST)) {
// send to and from
$to = "email@example.com";
$headers = "From: email@example.com \r\n";
$headers .= "Reply-To: email@example.com \r\n";
// form inputs
$name = $_POST['name'];
$email = $_POST['email'];
$phone = $_POST['phone'];
$message = $_POST['message'];
$robot = $_POST['robot'];
// email message
$email_subject = "Web Contact Message";
$email_body = "A message from your website contact form \n\n" .
"Email: $email \n\n" .
"Phone: $phone \n\n" .
"From: $name \n\n" .
"Message: \n" .
"$message \n";
// honeypot
if ($robot)
header("Location: http://www.example.com/nothankyou.html");
else {
//validate email
if (!filter_var($email, FILTER_VALIDATE_EMAIL)) {
header("Location: form.php?error=email_error");
} else {
// send it
mail($to, $email_subject, $email_body, $headers);
header("Location: http://www.example.com/thankyou.html");
}
}
}
?>
<form method="post" name="form" action="">
<p>Robot: <input type="text" name="robot" ></p>
<p>Name: <input type="text" name="name" ></p>
<p>Email: <input type="email" name="email"></p>
<p>Phone: <input type="telephone" name="phone"></p>
<p>Message: <textarea name="message"></textarea></p>
<p><input type="submit" value="Send Form"></p>
</form>
<?php
if (isset($_GET["error"]) && $_GET["error"] == "email_error") {
?>
<div id="error">Please Enter a Valid Email</div>
<?php
}