PHP联系表单输入字段出错，但不知道为什么

时间：2016-11-07 19:17:54

标签： php html contact-form input-field

我使用一些PHP代码创建了一个简单的联系表单，并允许它在某些情况下给出错误，例如，如果字段为空，或者字段的内容与某些条件不匹配。 我已将标准条件应用于电子邮件输入框（例如，必须包含'@'符号。但即使所有正确的条件都匹配，我的PHP仍然会抛出错误。

以下是代码：

<?php
if(isset($_POST['email'])){

	// Here is the email to information
	$email_to ="info@example.co.uk";
	$email_subject ="example.co.uk contact form";
	$email_from ="Website Contact Form";
	
	// Error Code
	
	function died($error) {
		echo 'Sorry, there is a problem with the form you submitted. ';
		echo 'These errors appear below.<br/><br/>';
		echo $error. '<br/><br/>';
		echo 'Please go back and fix these errors.';
		die();
		}
		
	// Validation
	
		if(!isset($_POST['name']) ||
		!isset($_POST['email']) ||
		!isset($_POST['comments'])){
			died('All fields must be filled out.');
			}	
		
		$name = $_POST['name'];
		$email = $_POST['email'];
		$comments = $_POST['comments'];
		
		$error_message = "";
		$email_exp = '/^[A-Za-z0-9._%-]+@[A-Za-z0-9.-]+\.[A-Za-z]
		{2,4}$/';
		if(!preg_match($email_exp, $email)){
			$error_message .= 'The Email Address you entered does not appear to be valid.';
			}
		
		$string_exp = "/^[A-Za-z.'-]+$/";
		if (!preg_match($string_exp, $name)){
			$error_message .= 'The Name you entered does not appear to be valid.';
			}
		if (strlen($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 = "Form Details Below. \n\n";
			
		function clean_string($string){
		 $bad = array("content-type", "bcc:", "to:", "cc:", "href");
		 return str_replace($bad, "", $string);
		}
		
		$email_message .= "Name:" . clean_string($name) . "\n";
		$email_message .= "Email:" . clean_string($email) . "\n";
		$email_message .= "Comments:" . clean_string($comments) . "\n";
		
		
		// Create Email Headers
		$headers = 'From: ' .$email_from . "\r\n". 'Reply-To:' . $email. "\r\n" . 
		'X-Mailer: PHP/' . phpversion();
		@mail($email_to, $email_subject, $email_message, $headers);
		
?>
<html>
<!-- success message goes here-->
Thank You for contacting us, we will be in touch shortly. <br/>
Please Click <a href="contact.html">here<a/> to go back to the contact page.
</html>
<?php } ?>

有没有人理解为什么它还在给我错误信息？

1 个答案:

答案 0 :(得分：0)

你可以使用bootstrap-framework获得更好的外观

就像这样看起来会： bootstrap contact form

你的contact.php应该包含：

<?php
if (isset($_POST["submit"])) {
    $name = $_POST['name'];
    $email = $_POST['email'];
    $message = $_POST['message'];
    $human = intval($_POST['human']);
    $from = 'Demo Contact Form';
    $to = "jamiemeechan@outlook.com";
    $subject = 'Email from Tropilac.com';

    $body = "From: $name\n E-Mail: $email\n Message:\n $message";

    // Check if name has been entered
    if (!$_POST['name']) {
        $errName = 'Please enter your name';
    }

    // Check if email has been entered and is valid
    if (!$_POST['email'] || !filter_var($_POST['email'], FILTER_VALIDATE_EMAIL)) {
        $errEmail = 'Please enter a valid email address';
    }

    //Check if message has been entered
    if (!$_POST['message']) {
        $errMessage = 'Please enter your message';
    }
    //Check if simple anti-bot test is correct
    if ($human !== 5) {
        $errHuman = 'Your anti-spam is incorrect';
    }

    // If there are no errors, send the email
    if (!$errName && !$errEmail && !$errMessage && !$errHuman) {
        if (mail ($to, $subject, $body, $from)) {
            $result='<div class="alert alert-success">Thank You! I will be in touch</div>';
        } else {
            $result='<div class="alert alert-danger">Sorry there was an error sending your message. Please try again later</div>';
        }
    }
}
?>

和html应该是：

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="utf-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1">
    <title>Bootstrap Contact Form</title>
    <link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.1/css/bootstrap.min.css">
</head>
<body>
<div class="container">
    <div class="row">
        <div class="col-md-6 col-md-offset-3">
            <h1 class="page-header text-center">Contact Form Example</h1>
            <form class="form-horizontal" role="form" method="post" action="index.php">
                <div class="form-group">
                    <label for="name" class="col-sm-2 control-label">Name</label>
                    <div class="col-sm-10">
                        <input type="text" class="form-control" id="name" name="name" placeholder="First & Last Name" value="<?php echo htmlspecialchars($_POST['name']); ?>">
                        <?php echo "<p class='text-danger'>$errName</p>";?>
                    </div>
                </div>
                <div class="form-group">
                    <label for="email" class="col-sm-2 control-label">Email</label>
                    <div class="col-sm-10">
                        <input type="email" class="form-control" id="email" name="email" placeholder="example@domain.com" value="<?php echo htmlspecialchars($_POST['email']); ?>">
                        <?php echo "<p class='text-danger'>$errEmail</p>";?>
                    </div>
                </div>
                <div class="form-group">
                    <label for="message" class="col-sm-2 control-label">Message</label>
                    <div class="col-sm-10">
                        <textarea class="form-control" rows="4" name="message"><?php echo htmlspecialchars($_POST['message']);?></textarea>
                        <?php echo "<p class='text-danger'>$errMessage</p>";?>
                    </div>
                </div>
                <div class="form-group">
                    <label for="human" class="col-sm-2 control-label">2 + 3 = ?</label>
                    <div class="col-sm-10">
                        <input type="text" class="form-control" id="human" name="human" placeholder="Your Answer">
                        <?php echo "<p class='text-danger'>$errHuman</p>";?>
                    </div>
                </div>
                <div class="form-group">
                    <div class="col-sm-10 col-sm-offset-2">
                        <input id="submit" name="submit" type="submit" value="Send" class="btn btn-primary">
                    </div>
                </div>
                <div class="form-group">
                    <div class="col-sm-10 col-sm-offset-2">
                        <?php echo $result; ?>
                    </div>
                </div>
            </form>
        </div>
    </div>
</div>
<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.11.0/jquery.min.js"></script>
<script src="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.1/js/bootstrap.min.js"></script>
</body>
</html>

可以找到所有来源here和here

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