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我需要调整基本表单的代码。我不是一名PHP开发人员，我是一名平面设计师，而且我只具备PHP的基本知识。我需要做的是禁止发送此表单，除非复选框被打勾。我在网上发现了一些代码，我认为应该这样做，但它需要一些更改，我不确定代码的哪个部分需要调整。我研究了PHP，我意识到有很多我不需要的代码，我看到还有一个JavaScript，我已经改变了HTML中的表单布局，只留下了需要的部分。禁用表单提交，除非复选框被勾选
这里是表单外观：
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>Untitled Document</title>
</head>
<body>
<?php
session_start();
if(isset($_POST['Submit'])) {
$youremail = '[email protected]';
$fromsubject = 'Request from form';
$bedrijfsnaam = $_POST['bedrijfsnaam'];
$naam = $_POST['naam'];
$mail = $_POST['mail'];
$adres = $_POST['adres'];
$plaatsnaam = $_POST['plaatsnaam'];
$postcode = $_POST['postcode'];
$branche = $_POST['branche'];
$telefoon = $_POST['telefoon'];
$message = $_POST['message'];
$to = $youremail;
$mailsubject = 'Bericht ontvangen van'.$fromsubject.' Actie Pagina';
$body = $fromsubject.'
Bedrijfsnaam: '.$bedrijfsnaam.'
Naam Contact Persoon: '.$naam.'
E-mail: '.$mail.'
Adres: '.$adres.'
Plaatsnaam: '.$plaatsnaam.'
Postcode: '.$postcode.'
Branche: '.$branche.'
Telefoonnummer: '.$telefoon.'
vraag of Wens: '.$message.'
|---------End Message----------|';
echo "thank you for your request we will contact you asap.";
mail($to, $subject, $body);
}
else
{
echo "Error Please <a href='terms.php'>try again</a>";
}
/* if (isset($_POST['Submit'])) {
$to = '[email protected]';
$subject = 'Bericht ontvangen van'.$fromsubject.' Actie Pagina';
$body = '';
unset($_POST['Submit']);
foreach($_POST as $key => $val) {
$body .= ucfirst($key).": ".$val."\n";
}
if (mail($to, $subject, $body)) {
echo "Mail sent to ".$to." successfully.";
} else {
echo "Mail could not be sent.";
}
}*/
?>
</body>
</html>
这里是HTML和Javascript：提前任何帮助
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"
"http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<title>PHP form check box example</title>
<script type = "text/javascript">
//email form validation
function everif(str) {
var at = "@"
var punct = "."
var lat = str.indexOf(at)
var lstr = str.length
var lpunct = str.indexOf(punct)
if (str.indexOf(at) == -1)
{
alert("Valid email must be entered")
return false
}
if (str.indexOf(at) == -1 ||
str.indexOf(at) == 0 ||
str.indexOf(at) == lstr) {
alert("Valid email must be entered")
return false
}
if (str.indexOf(punct) == -1 ||
str.indexOf(punct) == 0 ||
str.indexOf(punct) == lstr) {
alert("Valid email must be entered")
return false
}
if (str.indexOf(at,(lat+1)) != -1) {
alert("Valid email must be entered")
return false
}
if (str.substring(lat-1,lat) == punct ||
str.substring(lat+1,lat+2) == punct) {
alert("Valid email must be entered")
return false
}
if (str.indexOf(punct,(lat+2)) == -1) {
alert("Valid email must be entered")
return false
}
if (str.indexOf(" ") != -1) {
alert("Valid email must be entered")
return false
}
return true
}
function evalid() {
var emailID = document.contact_form.mail
if (everif(emailID.value) == false) {
emailID.focus()
return false
}
//empty field validation
var naam = document.contact_form.naam
if ((naam.value == null) || (naam.value == "")) {
alert("Fields marqued with * must be entered")
naam.focus()
return false
}
var telefoon = document.contact_form.telefoon
if ((telefoon.value == null) || (telefoon.value == "")) {
alert("Fields marqued with * must be entered")
telefoon.focus()
return false
}
var branche = document.contact_form.branche
if ((branche.value == null) || (branche.value == "")) {
alert("Fields marqued with * must be entered")
branche.focus()
return false
}
return true
}
</script>
<style type = "text/css">
#content {
width:100%;
text-align:center;
font-family:Arial, Helvetica, sans-serif;
font-size:14px;
}
#button {
width:100%;
}
</style>
</head>
<body>
<div id = "content">
Some terms of trade goes here<br>
Some terms of trade goes here<br>
Some terms of trade goes here<br>
Some terms of trade goes here<br>
Some terms of trade goes here<br>
Some terms of trade goes here<br>
Some terms of trade goes here
</div>
<div id = "button">
<form name = "contact_form" method = "post"
id = "contactform" action = "form2.php" onSubmit = "return evalid()">
I accept the above terms of trade
<input type = "checkbox" name = "emailmarketing"
id = "emailmarketing" value = "emailmarketing" />
<input type = "submit" name = "Submit" value = "Submit">
</form>
</div>
</body>
</html>
谢谢！
提交表单（如果未选中）我想从任何不必要的行剥离的代码，我只需要接受复选框，从我看到有是更多的东西，如名称，地址等。我应该在PHP中留下什么行？ – user2486863