我发现了一个适用于多个文件上传的表单，并且我正在尝试进行一些验证，我现在只是尝试创建一些字段。
目前正在进行一些验证并显示错误消息，但表单总是无论如何发布。我的PHP知识是有限的，它可能看起来很乱，但如果有人可以帮助我如何修改以下代码，我将不胜感激。
<?php
if ($_SERVER['REQUEST_METHOD']=="POST"){
// we'll begin by assigning the To address and message subject
$to="paul@thedesignbank.co.uk";
$subject="Parts Request";
$subject = trim($_POST['namefrom']);
$vehiclereg = trim($_POST['vehiclereg']);
$chassisnumber = trim($_POST['chassisnumber']);
$contactnumber = trim($_POST['contactnumber']);
$emailfrom = trim($_POST['emailfrom']);
$address = trim($_POST['address']);
$town = trim($_POST['town']);
$postcode = trim($_POST['postcode']);
$comments = trim($_POST['comments']);
// get the sender's name and email address
// we'll just plug them a variable to be used later$from = stripslashes($_POST['fromname'])." <".stripslashes($_POST['fromemail']).">";
// generate a random string to be used as the boundary marker
$mime_boundary="==Multipart_Boundary_x".md5(mt_rand())."x";
// now we'll build the message headers
$headers = "From: $from\r\n" .
"MIME-Version: 1.0\r\n" .
"Content-Type: multipart/mixed;\r\n" .
" boundary=\"{$mime_boundary}\"";
// here, we'll start the message body.
// this is the text that will be displayed
// in the e-mail
$message.="From: ".$subject."\n";
$message.="Email: ".$emailfrom."\n";
$message.="Vehicle Registration: ".$vehiclereg."\n";
$message.="Chassis Number: ".$chassisnumber."\n";
$message.="Address: ".$address."\n";
$message.="Town: ".$town."\n";
$message.="Postcode: ".$postcode."\n";
$message.="Contact Number: ".$contactnumber."\n";
$message.="Comment: ".$comments."\n\n";
//my validation gives a message but email still posts
$errors = array();
if (!$_POST['namefrom'])
// if not, add that error to our array
$errors[] = "Name is required";
// check to see if a subject was entered
if (!$_POST['emailfrom'])
// if not, add that error to our array
$errors[] = "Email Address is required";
if (!$_POST['contactnumber'])
// if not, add that error to our array
$errors[] = "Contact Number is required";
// check to see if a message was entered
if (!$_POST['vehiclereg'])
// if not, add that error to our array
$errors[] = "vehiclereg is required";
// if there are any errors, display them
if (count($errors)>0){
echo "<strong>ERROR:<br>\n";
foreach($errors as $err)
echo "$err<br>\n";
} else {
}
// next, we'll build the invisible portion of the message body
// note that we insert two dashes in front of the MIME boundary
// when we use it
$message = "This is a multi-part message in MIME format.\n\n" .
"--{$mime_boundary}\n" .
"Content-Type: text/plain; charset=\"iso-8859-1\"\n" .
"Content-Transfer-Encoding: 7bit\n\n" .
$message . "\n\n";
// now we'll process our uploaded files
foreach($_FILES as $userfile){
// store the file information to variables for easier access
$tmp_name = $userfile['tmp_name'];
$type = $userfile['type'];
$name = $userfile['name'];
$size = $userfile['size'];
// if the upload succeded, the file will exist
if (file_exists($tmp_name)){
// check to make sure that it is an uploaded file and not a system file
if(is_uploaded_file($tmp_name)){
// open the file for a binary read
$file = fopen($tmp_name,'rb');
// read the file content into a variable
$data = fread($file,filesize($tmp_name));
// close the file
fclose($file);
// now we encode it and split it into acceptable length lines
$data = chunk_split(base64_encode($data));
}
// now we'll insert a boundary to indicate we're starting the attachment
// we have to specify the content type, file name, and disposition as
// an attachment, then add the file content.
// NOTE: we don't set another boundary to indicate that the end of the
// file has been reached here. we only want one boundary between each file
// we'll add the final one after the loop finishes.
$message .= "--{$mime_boundary}\n" .
"Content-Type: {$type};\n" .
" name=\"{$name}\"\n" .
"Content-Disposition: attachment;\n" .
" filename=\"{$fileatt_name}\"\n" .
"Content-Transfer-Encoding: base64\n\n" .
$data . "\n\n";
}
}
// here's our closing mime boundary that indicates the last of the message
$message.="--{$mime_boundary}--\n";
// now we just send the message
if (@mail($to, $subject, $message, $headers))
echo "Message Sent Successfully";
else
echo "Failed to send";
} else {
?>
<form action="<?php echo $_SERVER['PHP_SELF']; ?>" method="post"
enctype="multipart/form-data" name="form1">
<h3>Vehicle Details</h3>
<p style="margin:17px 0"> <label style=" font-family: Helvetica, Arial, sans-serif;">Vehicle Registration: <span style="color:red">*</span></label>
<input class="form-input" name="vehiclereg" id="vehiclereg" type="text" tabindex="1" style="width:100%;"/></p>
<p style="margin:17px 0"> <label style=" font-family: Helvetica, Arial, sans-serif;">VIN/Chassis Number (Last 6 Digits):</label>
<input class="form-input" name="chassisnumber" id="chassisnumber" type="text" tabindex="1" style="width:100%;"/></p>
<h3>Customer Details</h3>
<p style="margin:17px 0"> <label style=" font-family: Helvetica, Arial, sans-serif;">Name: <span style="color:red">*</span></label>
<input class="form-input" name="namefrom" id="namefrom" type="text" tabindex="1" style="width:100%;"/></p>
<!--changed these-->
<p style="margin:17px 0"><label style=" font-family: Helvetica, Arial, sans-serif;">Address:</label>
<input class="form-input" name="address" id="address" type="text" tabindex="1" style="width:100%;"/></p>
<p style="margin:17px 0"> <label style=" font-family: Helvetica, Arial, sans-serif;">Town:</label>
<input class="form-input" name="town" id="town" type="text" tabindex="1" style="width:100%;"/></p>
<p style="margin:17px 0"> <label style=" font-family: Helvetica, Arial, sans-serif;">Postcode:</label>
<input class="form-input" name="postcode" id="postcode" type="text" tabindex="1" style="width:100%;"/></p>
<!--changed these-->
<p style="margin:17px 0"> <label style=" font-family: Helvetica, Arial, sans-serif;">Email: <span style="color:red">*</span></label>
<input class="form-input" name="emailfrom" id="emailfrom" type="text" tabindex="3" style="width:100%;"/></p>
<p style="margin:17px 0"> <label style="margin-right: 4px; font-family: Helvetica, Arial, sans-serif;">Contact No: <span style="color:red">*</span></label>
<input type="text" class="form-input" name="contactnumber" id="contactnumber" rows="2" cols="22" tabindex="6" style="width:100%;" /></p>
<p style="margin:17px 0"> <label style="margin-right: 4px; vertical-align:top; font-family: Helvetica, Arial, sans-serif; ">Brief Description of Request: </label>
<textarea class="form-input" name="comments" id="comments" rows="7" cols="22" tabindex="6" style="height:50px; width:100%;" ></textarea></p>
<p style="margin:17px 0">
<label style="margin-right: 4px; font-family: Helvetica, Arial, sans-serif;">Vehicle image/doc one:</label>
<input type="file" name="file1">
</p>
<p style="margin:17px 0">
<label style="margin-right: 4px; font-family: Helvetica, Arial, sans-serif;">Vehicle image/doc two:</label>
<input type="file" name="file2">
</p>
<p style="margin:17px 0">
<label style="margin-right: 4px; font-family: Helvetica, Arial, sans-serif;">Vehicle image/doc three:</label>
<input type="file" name="file3">
</p>
<div style="clear:both">
<p> I would like to subscribe to the newsletter
<input name="subscribe" type="checkbox" value="website_subscribers" name="mailinglist[]" checked="checked" /></p>
</div>
<p><input type="submit" name="Submit" value="Submit"></p>
</form>
<?php } ?>
答案 0 :(得分：0)
使用if (!$_POST['emailfrom'])只会检查发布的字段是否存在。无论它是否为空。
相反，您可以使用空：
if (empty($_POST['emailfrom'])) {
echo 'error'
}
您还可以在字段中添加一些额外的检查，例如有效的电子邮件检查或phonenumber验证器：
if (empty($_POST['emailfrom']) || !isValidEmailCustomFunction($_POST['emailfrom]')) {
echo 'error'
}
答案 1 :(得分：0)
类似
if(!isset($_POST['namefrom']) || $_POST['namefrom']=="" ){
$error[]="Please enter your name";
}