Html 空字段的表单验证程序
我在一个空字段中遇到表单验证问题。我已经包含了php中出现错误时的代码，我真的认为这可以解决问题，但不管怎样，它仍然提交表单，并重定向到感谢页面 表格载于： 以下是php：Html 空字段的表单验证程序,html,forms,validation,field,Html,Forms,Validation,Field,我在一个空字段中遇到表单验证问题。我已经包含了php中出现错误时的代码，我真的认为这可以解决问题，但不管怎样，它仍然提交表单，并重定向到感谢页面 表格载于： 以下是php： <?php $firstnameErr = $lastnameErr = $positionErr = $companynameErr = $address1Err = $postcodeErr = $countryErr = $emailErr = $numberErr = $elecErr = $howManyE
<?php
$firstnameErr = $lastnameErr = $positionErr = $companynameErr = $address1Err = $postcodeErr = $countryErr = $emailErr = $numberErr = $elecErr = $howManyErr;
$favFruit = array();
$myemail = 'tina.harris@31media.co.uk';//<-----Put Your email address here.
if ($_SERVER["REQUEST_METHOD"] == "POST") {
if (empty($_POST["firstname"])) {
$firstnameErr = "Please provide your first name";
}
else {
$firstname = $_POST["firstname"];
}
if (empty($_POST["lastname"])) {
$lastnameErr = "Please provide your first name";
}
else {
$lastname = $_POST["lastname"];
}
if (empty($_POST["position"])) {
$positionErr = "Please state your job position";
}
else {
$position = $_POST["position"];
}
if (empty($_POST["companyname"])) {
$companynameErr = "Please state your company's name";
}
else {
$companyname = $_POST["companyname"];
}
if (empty($_POST["address1"])) {
$address1Err = "Please provide an address for your invoice";
}
else {
$address1 = $_POST["address1"];
}
if (empty($_POST['address2'])) {
}
else {
$address2 = $_POST['address2'];
}
if (empty($_POST["postcode"])) {
$postcodeErr = "Please provide a postocde for your invoice";
}
else {
$postcode1 = $_POST["postcode"];
}
if (empty($_POST["country"])) {
$countryErr = "Please provide your country for your invoice";
}
else {
$country = $_POST["country"];
}
if (empty($_POST["email"])) {
$emailErr = "Please provide your email address";
}
else {
$email = $_POST["email"];
}
if (empty($_POST["number"])) {
$numberErr = "Please provide your phone number";
}
else {
$number = $_POST["number"];
}
if (empty($_POST["elec"])) {
$elecErr = "Please provide an electronic signature";
}
else {
$elec = $_POST["elec"];
}
}
if( empty($errors))
{
$to = $myemail;
$email_subject = "NSTC booking: $name";
$email_body = "You have received a new booking from NSTC. ".
" Here are the details: \n Places1: $places1 \n Places2: $places2 \n Places3: $places3 \n Title: $title \n First name: $firstname \n Last name: $lastname \n Position: $position \n Company name: $companyname \n Address1: $address1 \n Address2: $address2 \n Email: $email \n Number: \n $number \n Elec: $elec \n ";
if(isset($_POST['formDoor'])){
if (is_array($_POST['formDoor'])) {
foreach($_POST['formDoor'] as $value){
$email_body .= $value;
}
} else {
$value = $_POST['formDoor'];
$email_body .= $value;
}
}
$headers = "From: $myemail\n";
$headers .= "Reply-To: $email_address";
mail($to,$email_subject,$email_body,$headers);
//redirect to the 'thank you' page
header('Location: register-thanks.html');
}
?>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<title>Contact form handler</title>
</head>
<body>
<!-- This page is displayed only if there is some error -->
<?php
echo nl2br($errors);
?>
</body>
</html>
您的问题如下（我的假设）：
您没有在$errors变量中设置任何内容
我会这样做（我会给你一个例子，然后你必须把它应用到你的每一个if语句中。）
在脚本开头，定义一个空数组：
$errors = array();
然后（这就是您必须在所有“如果”语句中复制的内容：
if (empty($_POST["email"])) {
$errors['mailError'] = "Please provide your email address";
}
else {
$email = $_POST["email"];
}
在脚本的末尾：
if (count($errors) === 0) {
//passed, no errors.
} else {
//there are errors. handle them.
}
谢谢，虽然我试过了，在我点击提交后，页面上只显示了“数组”，但页面的其余部分是空的。我想我对最后一部分还不太清楚，这里有一个小提琴可以理解它：）非常感谢，它在Firefox和Chrome中运行得很好，但在Safari中没有，它只是让用户进入下一步。。你知道为什么吗？
if (count($errors) === 0) {
//passed, no errors.
} else {
//there are errors. handle them.
}