PHP表单提交前显示错误消息的联系表单
问题描述：
I am using a simple PHP contact form which is working well. But when you load a page for the first time it always gives the error message 'Please Supply all Information'
Can anyone see why this is happening?
<?php
$response = "";
function my_contact_form_generate_response($type, $message){
global $response;
if($type == "success") $response = "<div class='success'>{$message}</div>";
else $response = "<div class='error'>{$message}</div>";
}
$missing_content = "Please supply all information";
$message_unsent = "Message was not sent. Try Again";
$message_sent = "Thanks! Your message has been sent";
$name = $_POST['message_name'];
$phone = $_POST['message_phone'];
$to = 'test@example.com';
$subject = "Someone sent a message from ".get_bloginfo('name');
$headers = 'From: '. $email . "
" .
'Reply-To: ' . $email . "
";
if(empty($name) || empty($phone)){
my_contact_form_generate_response("error", $missing_content);
}
else
{
$sent = wp_mail($to, $subject, strip_tags($name), $headers);
if($sent) my_contact_form_generate_response("success", $message_sent); //message sent!
else my_contact_form_generate_response("error", $message_unsent); //message wasn't sent
}
?>
<form action="<?php the_permalink(); ?>" method="post" role="form">
<?php echo $response; ?>
<div class="form-group">
<label>Name:</label>
<input class="form-control" type="text" name="message_name">
</div>
<div class="form-group">
<label>Phone</label>
<input class="form-control" type="text" name="message_phone">
</div>
<div class="button-group">
<button type="submit" class="btn">Submit</button>
</div>
</form>
</div>
</div>
答
It's because you're not checking to see if the form is submitted. You're just executing that code on every page load. You can
Check if the submission was via POST
if ($_SERVER['REQUEST_METHOD'] === 'POST') {
// your code here
}
Or check if the submit button was pressed
<input type="submit" name="submit" class="btn">Submit</input>
if (isset($_POST['submit'])) {
// your code here
}