有人可以帮助我并引导我走上正确的道路
我有一个简单的表单和验证，但我的电子邮件中总是收到垃圾邮件，然后我决定将 CAPTCHA 放入其中以阻止机器人发送垃圾邮件。
问题是即使验证码是空白的消息仍然发送到我的电子邮件，我很难指出问题是什么，因为我还在 PHP 的学习过程中简而言之我只有 PHP 的基本知识
顺便说一句，这是我的代码：
HTML：
<form method="post" action="#">
<div class="inputFields">
<!-- <legend>Comment Form</legend> -->
<p>
<label for="name">Name</label><br />
<input type="text" name="name" id="name" <?php if(isset($name)){ echo 'value="' . $name . '" />';} else { echo 'value="" />';} ?>
</p>
<p>
<label for="email">Email </label><br />
<input type="text" name="email" id="email" <?php if(isset($email)){ echo 'value="' . $email . '" />';} else { echo 'value="" />';} ?>
</p>
<p>
<label for="location">Location</label><br />
<input type="text" name="location" id="location" <?php if(isset($location)){ echo 'value="' . $location . '" />';} else { echo 'value="" />';} ?>
</p>
<p>
<label class="yourMessage" for="comment">Your message</label><br />
<textarea cols="30" rows="10" name="message" id="comment"><?php if(isset($message)){ echo $message;}?></textarea>
</p>
<p>
<label class="captcha" for="captcha">Enter text from image</label><br />
<img src="test/seccode.php" width="100" height="36" alt="" /><br /><br />
<input type="text" name="captcha" value="" id="captcha"/>
</p>
</div>
<p>
<input class="submit" type="submit" name="submit" value="Submit" />
</p>
</form>
验证
<?php
$submit = htmlentities($_POST['submit']);
$name = htmlentities($_POST['name']);
$email = htmlentities($_POST['email']);
$message = htmlentities($_POST['message']);
if($submit == 'Submit') {
###### Validate 'name' and combat Magic Quotes if necessary
if(isset($name) && !empty($name)) {
$name2 = stripslashes($name);
$nameCheck = strlen($name2);
} else {
$err_name = '<span>Please enter your <strong>name</strong>.</span>';
$isError=true;
}
### check if data has numbers
if(is_numeric($name) ) {
$err_name = '<span>Please enter a valid <strong>name</strong>. No numbers please.</span>';
$isError=true;
}
if($_POST['captcha'] != $_SESSION['secCode']) {
// wrong security code
$err_captcha = '<span><strong>WRONG CODE!</strong></span>';
$isError=true;
}
else {
// security code is valid; reset it!
$_SESSION['secCode'] = rand(100000, 999999);
}
###### Validate 'email' and combat Magic Quotes if necessary
if(!empty($email) && eregi("^[_a-z0-9-]+(\.[_a-z0-9-]+)*@[a-z0-9-]+(\.[a-z0-9-]+)*(\.[a-z]{2,3})$", $_POST['email'])) {
} else {
$err_email = '<span>Please enter a valid <strong>email address</strong>.</span>';
$isError=true;
}
###### Validate 'message' and combat Magic Quotes if necessary
if(!empty($message)) {
$message2 = stripslashes($message);
$messageCheck = strlen($message2);
} else {
$err_message = '<span>Please enter your <strong>message</strong>.</span>';
$isError=true;
}
###### Mailing Address
$to = 'myemail@gmail.com';
$headers="From: $email\n";
###### Body of the email to be sent:
$message1="Name: $name\nEmail: $email\n\nMessage: $message";
//$message2="$name \'s message:\n\n\"$message\"";
###### Mailing the data
//!!!!!!!!!!! UNCOMMENT MAIL BELOW WHEN UPLOADED TO WEB HOST !!!!!!!!!!!
if(!isset($isError)) {
if(!empty($message)) {
mail($to,"Message from www.myemail.com",$message1,$headers);
} else {
//echo 'fail';
$err_message = '<font color="red">Please enter your message.</font>';
$isError=true;
}
}
###### Forwarding to another page
if(!empty($isError)) {
} else {
header("Location: thank_you.php");
}
}
?>